I personally look up torrent files for either FLACs (lossless quality, with very large files) or 320kbps MP3s (smaller files with no noticable difference in sound quality imo) and then after making sure they have the right metadata (Title, Album, Artist) (using a tool like Tagger) I upload them onto my Navidrome server, which I connect to using Ultrasonic. If I didn’t selfhost I’d probably just put the tagged files on my phone and play them with basically any music player.