Dean Martin & Jerry Lewis, the Bowery Boys, and Roscoe "Fatty" Arbuckle were what came to my mind.
The Arbuckle films with Keaton are already done in the Buster Keaton section. Paul Pain reviewed one of the talkies Shemp was in in the solo Stooge section. Outside of that, maybe a few random ones, but he did so many films and so many are lost or hard to obtain.
Bowery Boys would be cool, take about a year, and I would consider doing if more people would show interest. Surprised more Stooge fans don’t like them, I maintain The Three Stooges should have been making features like that starting in 1953, or maybe earlier.
As for Martin and Lewis, I’d have to do a lot of shopping. I’ve only seen four or five of their films as I’m not a big fan. Who knows, maybe one day.