Here’s soom tools i used and my experience with them

• beets: very powerful CLI tool. Has a learning curve but can go through your whole music folder, automatically tag stuff it is confident in and prompt you when it’s not sure.
• musicbrainz picard: really powerful gui. Can add a bunch of folders, group them by album and have it detect the right albums.
• kde kid3: simple gui app that if all you’re looking for is basic tag input then it makes it super easy to manually tag a bunch of content all at the same time.