I have pretty much the same setup. The only thing that bothers me with navidrome+feishin is that gapless playback is not working perfectly.

Also, a great resource for discovering new music is the public library. They often have a curated CD section that I then rip into FLAC. I've had great chats with the people in my town's library, and I often pick a totally random CD off the shelves and discover some amazing artists.