How to Choose Your LinkedIn Niche (Without Boxing Yourself In)

"Niche down" is the most-given and least-explained advice in content. Too broad and you're invisible — "leadership content" competes with half the platform. Too narrow and you exhaust the topic by week six. This guide gives you a concrete method for finding the workable middle, plus permission to evolve later.

Why niching works (the mechanical reasons)

It's not just marketing wisdom — niching exploits how LinkedIn actually distributes content:

1. The feed classifier rewards consistency. LinkedIn infers your account's topic from your posts and routes them to matching audiences. Consistent topics sharpen that routing; scattered topics blur it (more on how the algorithm reads content).
2. Memory requires a hook. People can remember "the Kubernetes cost guy" — they cannot remember "the guy who posts about tech, motivation, and travel." Referrals and inbound opportunities run on that memory.
3. Engagement compounds within a community. Niche audiences overlap; the same people keep seeing you, and familiarity converts to follows and trust.

The three-circle test

Your niche is the intersection of:

• Circle 1 — Depth: what you know from real experience (not what you could research)
• Circle 2 — Stamina: what you could write about weekly for 18 months without hating it
• Circle 3 — Demand: what your target audience (employers, clients, peers) demonstrably cares about

Most bad niches fail exactly one circle: chasing a hot topic you don't know (fails 1), picking your expertise but finding it boring (fails 2), or a passion nobody's buying (fails 3).

Sizing the niche: the specificity ladder

Take your broad field and descend until it feels slightly uncomfortable:

Marketing → B2B marketing → B2B email marketing → email deliverability for B2B SaaS

The rule of thumb: two levels below where you started is usually right. One level down still drowns in competition; three-plus levels down runs dry. Sanity checks:

• Can you list 30 post topics in your niche in 20 minutes? (Steal formats from here) If not, go one level up.
• Are there at least a few creators already in it? Zero competitors usually means zero audience, not open territory.
• Does your ideal opportunity-giver search for or follow this topic?

Niche ≠ cage: the 70/20/10 mix

The fear "I'll be boxed in" mistakes niche for exclusivity. The working pattern:

• 70% — core niche content (builds the classification and the memory hook)
• 20% — adjacent topics (career lessons, industry observations)
• 10% — you: stories, opinions, human moments (stories especially)

The 70% earns the audience; the 30% keeps you three-dimensional and followable.

Evolving later (everyone does)

Niches aren't tattoos. The standard path: dominate a narrow niche → audience trusts you → expand one adjacent ring at a time, keeping your center of gravity. Creators who grew from "SQL tips" to "data careers" to "tech leadership" carried their audiences with them because each expansion was earned, not abrupt. What kills accounts isn't changing niches — it's never having one.

Lock it in with consistency

A niche only exists if the posts keep coming — the classifier and the audience both learn from repetition. Once you've chosen, configure it as your engine's default: in InGrow you define your niche once, and it researches that space and drafts on-voice posts on schedule — 70% core content on autopilot, your judgment on top.

Key takeaways

• Niche = depth × stamina × demand; test all three circles
• Go two specificity levels down; verify with the 30-topics test
• Run a 70/20/10 mix — niched, adjacent, personal
• Niches are starting points, not cages; expand ring by ring after you've won one