I have a folder of MP3s, some of which date back to 1999, just a few years after the format was popularised. Most of them have utterly terrible names (think RIDEONAM.MP3). I think at this point they might even survive the heat death of the universe. And they’ll still be terribly-organised.
I… Still use the same tools I’ve used about two decades ago…
Jamp! Organizer, and/or MP3 Tagger. MP3 Tagger for fixing the id3 tags, and Jamp! for renaming the files in bulk how I want (artist - song, usually).