I do the same thing! How do you find people who want your product before you make it? It's hard to get people to know about it without showing them something first.
What if I don't have any distribution or social followings?
If you can't find people before you make it, then you won't find them after you make it either.
Which makes this an excellent question. Indeed perhaps the most important question to ask before you build anything.
Too many programmers subscribe to the school of "if you build it through will come'. (Hint: that's not how it works.)
Firstly you don't have to show anything to potential customers, (and even when you have it, it's better not to show it.) You are selling benefits, not features.
Secondly, how to find them is exactly the hard problem you need to figure out (it'll be different for different products.) For me personally, I the late 90s / early aughts, I traveled to user groups (all over the world.) Turns out that "showing up" spread the word very quickly.
(That worked for me because it's a niche area and nobody else bothered to travel, so I stood out.)
The key lesson here- if you can't define your market, and if you can't reach them, you can't sell to them.
Every business has hard problems. This may be yours. Solve this problem first, not last.
That’s a mistake I see too many people make. They try to solve a problem and build a product from afar, using their imagination or trying to copy an existing product without having personal relationships with people having that problem (or without having it themselves). I guess it’s possible to create a product first and then find people who need it and iterate from there, but I’ve found that having personal relationships and then making something in response to a common problem they have is the only way to start and grow. That’s what I’ve found “talk to users” actually means.
I made this mistake as a solo founder. It still ended up opening new doors for me, but still could've done a lot better if I had internalized this from the get go.
What if I don't have any distribution or social followings?
P.S. I'm in the same boat.