https://archive.org/details/@best_of_music_60-00s
It is something like a basic library. couple thousand cuts.
Here is another, in flac
https://archive.org/search?query=creator%3A"candia69"
If you like mp3 as a playlist, many of these are single file and long.'
https://archive.org/search?query=creator%3A"Jesswade"
I converted all my stuff, a good sized box full, to mp3 a long time ago, but a couple did not come out right, so I went looking for a replacement for one of them. The one I went looking for is not in this collection.