I use Lidarr for most music grabs. spotdl when Lidarr fails to find (which is uncommon since I use usenet). Then I use beets to manage music files <a href="">https://github.com/beetbox/beets</a> .
I have beets setup to run as a cron every 10 min, and it looks in the location that nzbget downloads to, and it automatically converts, fixes ID3s via musicbrainz db, and moves the completed files to my music section. Anything that beets doesnt see as a 95% match, I then manually run the script and choose the correct musicbrainz ID for the band/album.