I really wish more artists would put their music on band camp. I have even noticed that some artists who used to put their albums up there no longer are. It's a real shame
For discovering new music, I listen to my old college radio station. About once a month they play something good that makes me do a deep dive. I use Pianobar while I work, and creating a station based on a new (to me) artist tends to give me more to explore. I also use music-map.com from time to time.
As for acquiring music, I use Bandcamp. If they aren't on there, I'm not above finding it via file sharing.
I have a bunch of python scripts that help me rename all my files once I get their tags sorted out. For that I mostly use AudioRanger because it's so simple and I only process one album at a time.
From there, I use Syncthing. But I'm thinking about replacing it with rsync and just kick it off manually when I want to update everything about once a month.
For autotagging and importing (moving files), Beets.
For tagging edge cases, MusicBrainz Picard as the GUI and the Python tagging lib underneath it (mutagen iirc) with an LLM inside the pi cli agent for automation.
For format conversion and copying to portable devices, ffmpeg in custom bash scripts managed by an LLM.
I got stuck in Spotify for new music but that obviously doesn’t work long term