Apple Music.
If you're on Apple hardware and you just want music stuff that works, use their software. It makes the easy things incredibly easy.
For quickly tagging / getting artwork for random stuff like individual songs ripped from YouTube I use Yate’s [0] Discogs Wizard. It’s very configurable and fast to use once you set things up.
Edit: will add that Yate is actively developed and I only remember paying for my license once. I would happily pay for upgrades given its utility over the years.