I have bought a lot on Bandcamp, but would have bought 10x more if I could just find stuff I liked. The existing system makes discovery nearly impossible unless you happen to like the stuff being mainly bought and curated or are in a lucky genre.
Discoverability is especially hard because 99% of the music people create sucks. This may not seem true if you mainly listen to "radio" and playlists, but if you ever get access to a large catalog of independent music, try picking stuff at pseudo-random and take notes. As much as I love good art (and I do), most art is not good art. You can't go on popularity because some of the great artists (especially on Bandcamp) are relatively unknown and therefore are not popular. For example, Thousand Needles in Red is a phenomenal band with great albums, and almost completely unknown. These Four Walls is similar (but at least they are on Youtube Music/Spotify/etc). I'd buy the crap out of similar albums, but discovering them is very challenging. I mainly found those two out of random luck.
Anyway I'm rambling, but I do hope you can figure out a good means for discovery. I think finding and grouping people with similar tastes is among the best ways, and also having artists that a person likes recommend other artists can be super valuable.