How to Find Buying Signals on LinkedIn Without Paying for Sales Navigator

A lot of founders know their buyers complain publicly on LinkedIn - they just can’t afford to spend hours searching posts manually or justify another expensive prospecting tool.

The frustrating part isn’t that LinkedIn lacks intent. It’s that the intent is buried inside messy threads: vague posts, humblebrags, engagement bait, recycled “hot takes", and comment sections where the real buyer signals show up three replies deep.

Below is a practical way to find buying signals on LinkedIn without paying for Sales Navigator - plus how to avoid the trap of generic keyword alerts that bury the best leads.

What counts as a “buying signal" on LinkedIn (and what doesn’t)

A buying signal is any public behavior that implies:

1) A problem is urgent (they need to fix it now),
2) They’re evaluating options (tools, agencies, vendors, hires), or
3) They’re unhappy with their current solution (price, results, support, complexity).

On LinkedIn, those signals usually show up as:

• Complaint posts: “This tool is too expensive", “X isn’t working", “We’re stuck".
• Recommendation requests: “What are you using for…?" “Any alternatives to…?"
• Stack change announcements: “We’re moving off…" “We just switched to…"
• Hiring signals: “Hiring a RevOps lead" can imply a tooling rebuild.
• Implementation pain: “Does anyone have a template/process for…?"

What doesn’t count:

• People posting content for reach with no real need behind it.
• Generic “thought leadership" with no concrete problem.
• Vague “We’re scaling!" posts without a bottleneck.

The goal is to find posts where the person is essentially saying: “I’m open to being helped".

The manual LinkedIn search method (that works - until it eats your week)

If you’re doing this without Sales Navigator, you’re probably relying on some mix of:

• LinkedIn’s basic search bar
• Following a list of “ideal audience" creators
• Monitoring hashtags
• Checking comment sections of big accounts
• Saving posts and coming back later

That can work, especially early on. The issue is consistency.

Most founders start strong, then it becomes a daily tax:

• Search → scroll → open 15 posts → realize 14 aren’t relevant → repeat.

It’s not just time. It’s attention. It’s hard to context-switch between building product, shipping, support, and then hunting for needle-in-haystack posts.

Where high-intent LinkedIn signals actually hide

If you only scan the main feed, you miss the best parts. Buying intent concentrates in a few predictable places.

1) Comments on “what do you use for X?" posts

The original post may be broad, but the comments reveal:

• Who has the problem right now
• What they tried
• What they hate about current options
• Who they trust

This is also where prospects mention competitors casually (“We tried Tool A but…") - pure gold for positioning.

2) “Switching away from…" posts

These are the closest thing LinkedIn has to an RFP.

When someone posts that they’re moving away from a solution, they’re typically:

• Past the awareness stage
• Actively comparing alternatives
• Motivated by a specific failure (price, complexity, bad support)

Your best response is rarely “Book a demo". It’s usually: ask one clarifying question, share a small relevant resource, or offer a quick checklist.

3) Hiring posts that imply tooling change

A hiring post like “We’re looking for a RevOps lead" can be a leading indicator that:

• They’re about to implement a CRM
• They’re rethinking attribution
• They need outbound infrastructure

If you sell software or services that sit near that function, this is a warm conversation starter.

4) Quiet signals in personal “I’m stuck" updates

Not every buyer writes “recommend me a tool". Many write emotional, human posts:

• “I can’t keep up with…"
• “We’re drowning in…"
• “I’ve tried everything…"

Those are high intent, but only if you can connect the dots to what you sell.

A repeatable workflow to find LinkedIn buying signals (no Sales Navigator)

This workflow is designed to be done in 20–30 minutes per day, not 3 hours.

Step 1: Pick 5–10 “trigger phrases" tied to urgency

Avoid broad keywords like “CRM" or “marketing". They produce noise.

Use phrases that imply urgency or evaluation, such as:

• “alternatives to"
• “recommendations for"
• “what tool do you use for"
• “switching from"
• “too expensive"
• “anyone tried"
• “looking for a vendor"

Then pair them with your category:

• “alternatives to HubSpot"
• “recommendations for user onboarding"
• “too expensive for a small team"

Step 2: Search posts, then open profiles (not just the post)

A post can look relevant, but the profile tells you:

• Their role (can they buy?)
• Company size (can they afford?)
• Industry fit
• Whether they’re a consultant vs. operator

This saves you from chasing the wrong “engagers".

Step 3: Use a simple “intent score" so you don’t fool yourself

Give each lead a quick score (1–5):

• 5 = asking for recommendations / switching tools / budget mentioned
• 4 = clear pain + role match
• 3 = pain implied, needs a clarifying question
• 2 = content post with light relevance
• 1 = irrelevant

Only engage with 4–5s daily. Save 3s if you have time.

Step 4: Reply like a human (one useful step, not a pitch)

Your first comment should do one of these:

• Ask one smart question
• Offer a short checklist
• Share a relevant example
• Provide a comparison point (when appropriate)

Avoid:

• Dropping a link immediately
• “DM me" as your first line
• Copy-paste templates

A good comment earns permission.

Step 5: Track threads in a lightweight board

If you don’t track threads, you lose the thread.

A simple Kanban works:

• New signal
• Engaged
• DM sent
• Call booked
• Won/Lost

Why generic keyword alerts bury the best LinkedIn leads

Most alert tools are built to notify you when a keyword appears.

The problem: buying signals aren’t always keyword-heavy.

Someone might write:

• “We’re paying way too much for this and it still breaks".

…and never mention your category keyword.

Meanwhile, keyword alerts will happily spam you with:

• Job posts
• Company announcements
• People quoting someone else
• Reposts
• AI-generated summaries

This matches what Achiv.com explicitly calls out: “Social listening platforms like Mention or Brand24 blast you with every mention - bots, promotional spam, irrelevant threads". That’s the core failure mode - you get volume, not intent.

A practical alternative: let a system surface qualified conversations for you

If you’re bootstrapped, the issue isn’t whether Sales Navigator is “worth it". It’s whether prospecting becomes another subscription and another daily task.

Achiv.com (https://achiv.com) is built for the specific problem founders complain about: spending hours hunting Reddit, X, and LinkedIn for people who need what they sell.

Instead of asking you to:

• build complex searches,
• connect your accounts,
• or sift through noisy alerts,

Achiv.com works like this:

1) Paste your website URL2) It reads your positioning and builds an ICP automatically
3) It monitors Reddit, X, and LinkedIn daily
4) You wake up to a curated kanban board of conversations worth engaging with

The key difference is curation. In Achiv’s own words, it’s not “another keyword alert tool"; it filters spam and bot noise and surfaces conversations where real people describe problems your product solves.

What makes this useful for LinkedIn buying signals specifically

LinkedIn intent is contextual. A single post rarely contains everything you need.

Achiv.com adds an “analysis layer" to each lead, including:

• extracted pain points
• detected objections
• competitor context (what they’re using/considering)

That means you can engage with more precision - without reading 40 threads to find 3 good ones.

Addressing a common objection: “I don’t want to connect my LinkedIn account"

That concern is valid. Account connections can feel risky, especially if a tool requests broad permissions.

Achiv.com’s approach is explicitly different: it doesn’t require account connections or credentials, and it doesn’t send automated DMs. You get the conversation and context, and you decide how to respond.

For founders worried about brand risk, this matters: you’re not outsourcing your voice to automation.

How to turn a LinkedIn buying signal into a warm conversation (templates that don’t feel templated)

Use these as structures, not scripts.

If they ask for recommendations

• “What’s the main constraint - budget, setup time, or reporting depth? If you share that, I can point you to 2–3 options that fit".

Why it works: you’re helping them choose, not forcing your product.

If they complain about a tool

• “What’s the part that’s failing you - support, accuracy, or the workflow? I’ve seen teams run into that when they scale past X".

Why it works: it invites detail and shows pattern recognition.

If they mention a competitor

• “Curious - what matters most for you: [A] ease of setup, [B] integrations, or [C] cost? Different tools win depending on that".

Why it works: it creates a comparison frame without trashing anyone.

The smartest “no-budget" strategy: specialize your listening

If you don’t have money for Sales Navigator, you need focus.

Pick one of these angles:

• One persona (e.g., RevOps leaders at SaaS 50–500)
• One pain (e.g., attribution, onboarding, outbound)
• One competitor (e.g., “alternatives to X")

Then track only those threads.

This is also where Achiv.com’s ICP-driven approach helps: instead of you constantly tightening queries, the system keeps the monitoring anchored to who you actually want.

Closing takeaway: intent is a pattern, not a keyword

LinkedIn buying signals aren’t rare - they’re just scattered.

If you rely on broad keyword alerts, you’ll drown in irrelevant mentions. If you rely on manual search, you’ll burn time you don’t have.

The sustainable approach is:

• define a small set of intent triggers,
• build a lightweight scoring + tracking habit,
• and use curated monitoring (like Achiv.com) when you want consistent daily coverage without connecting accounts or spamming anyone.

That’s how you find the people already raising their hand - and show up with something genuinely useful to say.