For algorithmic discovery, I use Spotube with the Listenbrainz library backend using their discover playlists. Sometimes I listen to playlists associated with communities I’m in, which are on Spotify so I also use Spotube. For offline listening I use Qobuz, although their DRM has broken it occasionally when I needed it so I want to switch that to Spotube as well once they improve their offline functionality and fix related bugs, or set up Navidrome.