I place them in ~/music/artist/album and use picard and kid3 for music tagging. And use navidrome for music streaming. For lyrics i use LRCGET to manually scan every now and again but i also have a navidrome plugin to fetch lyrics when playing music that lack lyrics.

For the tagging music it did take a while but wasn’t too bad for my library with ~8k songs. I found picard best for me for stuff already in musicbrainz. You can add a whole album folder to it, add them to cluster and identify the whole album at once. If it isn’t identified then i liked kid3 better for cleaning up tags before submitting to musicbrainz with picard.

Since you asked about automation, beets is better for automating tagging but if you take issues with musicbrainz then that’s what it uses under the hood.