I follow a bunch of artists and labels there, and get notifications when new stuff get published by them. If I find a new artist, I usually look them up on Bandcamp, and follow the label too, looking through whatever other stuff they published.
If I find a really small artist on Bandcamp, I usually look through which Bandcamp users have supported the artist, and look through what else they follow/collected, been finding some gems this way too, but takes a bit more effort.
Bandcamp also has something called "Bandcamp Fridays" (https://daily.bandcamp.com/features/bandcamp-fridays-update) where more of what you pay go to the artists. I usually save up what I want to buy until next Bandcamp Friday and then go on a shopping spree based on my list.