"Pick three content pillars" is advice everyone gives and almost nobody explains. Three what, exactly? Three broad categories like "leadership" and "industry trends" don't actually tell you what to post on a random Tuesday. Real pillars are more specific than that, and easier to fill once you see a few done properly.
What a pillar actually needs to do
A content pillar isn't a topic, it's a filter. When an idea crosses your mind, it should either clearly belong to one of your pillars or clearly not, with very little debate. If everything you think of technically fits, the pillar is too broad to be useful.
A structure that holds up across professions: one pillar that teaches, one that proves, one that shows a point of view. Teaching is the thing people would pay you for. Proof is evidence it actually works, a result, a case, a lesson from real work. Point of view is where you take a side, an opinion you'd defend if someone pushed back.
What this looks like by profession
CPA / accountant — Teach: quarterly tax mistakes people make. Prove: a client story where catching an error saved real money. Point of view: an opinion on a common but bad piece of financial advice.
Recruiter — Teach: what interview answers actually signal. Prove: a placement story, what made the hire work. Point of view: a take on a hiring trend you think is overrated.
Employment lawyer — Teach: common HR questions, explained simply. Prove: a workplace investigation lesson (anonymized). Point of view: where you disagree with standard HR guidance.
Fractional CFO — Teach: cash flow mistakes you keep seeing. Prove: a turnaround story with real (rounded) numbers. Point of view: a prediction about where budgets are headed.
Marketing consultant — Teach: a framework you actually use with clients. Prove: before-and-after from a real engagement. Point of view: a channel or tactic you think is overrated right now.
Notice none of these are single words like "leadership" or "marketing." Each one names a specific angle inside a broader field, which is what makes it fillable week after week instead of running dry after a month.
Finding yours in about ten minutes
Write down the three questions you get asked most often in your actual work, the ones people message you or ask on calls. That's your teaching pillar, right there, no guessing required.
Next, think of two or three specific moments from the last year where something you did clearly worked, or clearly didn't and taught you something. Real details, not a general summary. That's your proof pillar.
Last, think of one thing in your field that most people say confidently that you think is wrong, or overrated, or missing something important. That's your point-of-view pillar, and it's usually the one people skip because it feels riskier. It's also usually the one that gets the most genuine engagement, since agreement and disagreement both produce comments, and comments are worth far more than a like right now.
What kills a good pillar
Two common mistakes. First, pillars that are secretly the same thing worded three ways, "productivity," "efficiency," and "getting things done" aren't three pillars, they're one pillar wearing different outfits. Second, pillars chosen because they sound impressive rather than because you'd actually enjoy writing about them every week. The second one burns people out by week four.
A quick test: could you list ten specific post ideas under each pillar right now, off the top of your head, in under two minutes? If one pillar stalls out at two or three ideas, it's either too narrow or it's not actually something you know well. Swap it before you build a month of content around it.
Where this fits with ScoutHook
Once pillars are set, the harder part for most people isn't deciding what to write about, it's remembering the good, specific stuff when it happens. ScoutHook's Idea Vault is built for catching those moments as they come up, then asking a few questions later to pull out the details that make a post feel real instead of generic. The pillars give you the categories. The tool helps make sure what fills them is actually worth reading.
Fill your pillars with what you actually know. ScoutHook helps you capture ideas as they happen and draws out the details that make each post specific to you. Try ScoutHook → https://www.scouthook.com
Frequently asked questions
What are content pillars? The two or three recurring topics you post about, chosen where your expertise overlaps what your audience cares about. They act as a filter for what to post.
How many should I have? Three works for most people. One gets repetitive, more than four makes you hard to pin down, both to people and to the algorithm.
What's a good pillar structure? Teach the thing people hire you for, prove it with real results or lessons, and show a point of view by taking a side on something. That combination covers most of what makes someone worth following.