I use Radarr and Sonarr for my movies/shows, and Spotify for music, but I do know there's another *arr app for that. The question is, is it worth setting up and how easy is it to discover new/similar music as opposed to Spotify, given that Spotify isn't expensive at all. And how do you fellow crewmen go about it?
If you setup this script for lidarr https://github.com/RandomNinjaAtk/arr-scripts it'll automatically download music. Combined with navidrome it's very good.
It is better than spotify because spotify doesn't have all music and you can choose the front end and don't depend on them.
You are right, now that I think about it Spotify was only good on macOS and Android for me. The official app wasn't even available for Linux on my platform. And I wasn't able to find all the music I wanted with it anyway, so I might give it a shot, thank you!
Set it up and add one artist. See how it goes. It fetches info from musicbrainz and then works its magic. If the info is not on musicbrainz, add it with a greasemonkey script (or however you want to add it). Don't overload it.