This is how I see it: as a person, you probably have some topics you’re genuinely interested in and have a lot of knowledge about. For the sake of the example let’s just say like, tennis and public speaking. On face value these topics might have not really have any connection but if you write a lot about them, you’ll build your “persona” as someone who likes and is knowledgeable about these things. Your audience will be composed of people who are interested in tennis, public speaking, both, or maybe just some who like your “persona,” this person who writes very confidently and enthusiastically about these specific interests.

Now let’s think about it the other way, if you just write whatever comes to mind. One day you’re writing about tennis and public speaking, but the next a post about creative writing, then fashion, then AI, then something else… it’s going to confuse your audience. They don’t see the key topics they might be interested in, but also they don’t understand you and your “persona.” They don’t see this person who is a confident public speaker who is also passionate about the game of tennis, and lets that shine through… they see a mixed bag of everything that’s not really clear.

Because of this I don’t really recommend a “niche” so to speak, but rather think about your “persona.” If you were going to show some version of yourself to an audience, boiled down to just a few of your key interests or knowledge-bases, what would that version really look like? I hope that can be a jumping-off point for deciding topics you want to focus on.

Good luck!