Hi there. I'm a new poster to the forum. I've put together a front end website for the Commodore gamebase database. This website is an archive of 700 PET games and 2,277 Vic-20 games, with other machines from C= to follow. You can search and download (if permitted by copyright) the games, view the manuals, box covers, magazine ads, etc.
It's about as close to a complete collection of these two machines as you'll find.
Soon you'll be able to edit the entries and upload missing titles as well.https://www.commodoregamebase.com/