How to choose a niche for a directory website (the honest version)

Everyone tells you to "find a profitable niche." Run the keyword research. Check the search volume. Find the gap in the market. Validate the demand. There are entire courses built around that idea, and they're not wrong exactly — but they're missing something no spreadsheet will ever show you.

I've built six niche websites — across construction, travel, and hospitality — as actual businesses I run, not case studies for a course. Four of them are directories. So this is the niche-selection process I actually used, including the site I didn't plan and the reason I built across such different worlds.

The question that actually matters

Before you pick a niche, ask yourself something simpler than "is this profitable":

Here's why that question beats a search-volume spreadsheet. A directory isn't a product you launch and walk away from. It's a world you build and then live in. You're going to be writing about it, thinking about it, reaching out to people about it, and defending it when growth is slow and nobody's coming. You'll need to know things that aren't on the first page of Google. You'll need to sound like someone who belongs in the space — because the people you're serving will know immediately if you don't.

When you know it

I chose construction because I know it. My husband is a commercial superintendent. I've built two software products for the construction industry. I understand the buyers, the language, the pain points, and the workflows. I didn't need to research what a general contractor needs from a subcontractor — I already knew. That insider knowledge is worth more than any keyword tool, and it's exactly what let me structure the listings on Sunstate Trades around what actually matters: license types, certified vs. registered status, insurance, how a GC really vets a sub.

When you love it (and know it)

I chose travel because I know it and love it. I've cruised the Mediterranean. I've stayed in swim-up suites. I'm a licensed travel advisor. I have opinions about overwater bungalows and I'm not shy about sharing them. That combination — knowledge plus genuine passion — shows up in the writing. Readers feel it. Search engines reward it. That's Jet & Swim.

When the niche finds you

And then there's the third answer, the one I have to be honest about: sometimes you don't find the niche at all. Sometimes you're building something else entirely, and the niche finds you.

I was building a website for rooftop pools. I was deep in the design, and somewhere along the way I accidentally created something stunning — dark, rich, moody. It looked like aged tobacco. Like a glass of scotch. It was absolutely not a travel website. But the moment I stepped back and looked at it, I knew exactly what it was going to be. I pivoted on the spot, and The Ember Room — a cigar lounge directory — was born. It runs today as Smoke & Settle; I had to rebuild it from the name up when another business turned out to own the first one.

Now, I'm not a cigar aficionado. But I've spent enough time around the culture to know what makes a great lounge, what serious cigar people care about, and what they'd never tolerate. Sometimes you don't need to be the expert — you just need to know enough to be a credible curator, and to care enough to get it right. The trick is knowing it when you see it.

A filter that's specific to directories: can you reach the listings?

Here's a consideration that a general "pick a niche" article will skip, because it only matters for directories: how reachable are the businesses you'll be listing and, eventually, partnering with?

Think about who you're actually going to email, call, or walk up to. A high-end luxury resort is hard to break through — there are PR layers, marketing teams, and gatekeepers between you and a yes. A small independent cigar lounge? You can walk in the door and talk to the owner. That accessibility changes how fast you can grow, how you monetize, and how quickly you build real relationships in your niche. When two niches feel equally good on the "know it / love it" test, the one with more reachable partners will move faster.

The exercise: what do you do when nobody's watching?

If you're stuck, try this. I was recently talking with a friend who wanted to build a directory but couldn't figure out her niche. As we talked, I noticed something. She loves going to restaurants — not just eating, but photographing the food, remembering the dishes, knowing what makes a plate worth ordering again. She'd been doing it for years without thinking of it as anything but a hobby.

The answer was obvious: a directory that connects people with restaurants, showcases standout dishes, and tells the story behind the food. Something she already knows, already loves, and already does naturally. When she writes about a dish, readers will feel that it's real — because it is.

So think about what you do when nobody's watching. What you photograph. What you research for fun. What you can talk about for three hours without noticing the time. What you already know so well that you forget it's knowledge at all.

So is "profitable" irrelevant? No — just don't start there

Demand still matters. A directory nobody's searching for won't grow no matter how much you love it. So once a subject clears the know-it / love-it bar, absolutely pressure-test the demand — search interest, whether an obvious dominant directory already owns the space, whether businesses would pay to be listed someday. The order is what matters: start with what you can speak about with authority, then check that a real audience exists. Starting with the spreadsheet gets you a site you're bored of in month three, right before the compounding was supposed to start.

One more thing on balance, since I built across such different worlds on purpose. After sixteen-hour days deep in construction data, my brain needed somewhere else to go — turquoise water, overwater bungalows, the Maldives. Travel wasn't only a business decision; it was a survival mechanism. If your primary directory is heavy and serious, give yourself permission to build something light and beautiful on the side. Your portfolio doesn't have to make perfect strategic sense. It just has to keep you sane enough to keep building.

Common questions

Should I pick a niche I know, or one that's profitable?

Know it first, then confirm it's profitable — not the other way around. A profitable niche you don't understand leaves you sounding like every other thin site chasing the same keywords, and readers (and Google) can tell. Deep knowledge is the one advantage a solo founder has that a bigger competitor can't easily buy.

How narrow should a directory niche be?

Narrow enough that you can picture the audience as one specific person, and narrow enough that the project has edges you can actually finish. "Hotels" is a treadmill. "Hotels with rooftop pools" has a finite, coverable list — which is exactly why Sky & Swim works. Narrow isn't small; narrow is focused.

What if I have several interests?

You can build more than one directory — I have — but go deep on one before you split your attention. Multiple thin directories lose to one deep, authoritative one every time. If you do run several, let at least one be the "exhale" site you build for love as much as money.

What's the difference between choosing a niche and building the rest of the directory?

Choosing the niche is the first decision; it's not the whole build. Structuring listings, picking a platform, writing content, SEO, and monetization are all separate calls that each affect the others. That full, sequenced walkthrough — from this first decision to your first dollar, across six real sites — is exactly what the playbook covers.