I've been exploring Funkwhale for some time now and I truly love it. I do wish however that the discoverability would be improved. The closest thing I could find now is the Browse tab under Explore which shows the Recently listened and Recently favorited songs as well as New playlists, Recently added albums and New channels.
My suggestion would be to include trending (by lack of another word) songs that are often favorited or listened to. Same goes for albums and playlists. To avoid a boring list that never changes the lists could be limited to what was trending last month.