Thanks, Kiki! In case it helps, here is my opinionated opinion on a few writing platforms:

Medium and Twitter are some of the easiest places to build an audience. So if you don't have one right now, I'd start there.

Substack (and maybe Revue) is probably the best place to get a stable income if you have a massive audience already. (The problem with Substack is that they don't really search readers for you, but this may change soon since they are working on discoverability features.)

I also hear that it's relatively easy to grow an audience on LinkedIn, but as far as I know, you have to funnel them somewhere else to monetize those readers.