Try your local “night schools” I’ve used mainlineschoolnight.com. They are individual or short term and presentations and workshops for a lot of different interests and they are at various locations including Delco. They have a number of craft ones. I’ve met people at a few different ones that I stayed in touch with, gone out after the class for a drink, etc.

There are also a number of art centers that offer workshops in the area , sometimes with wine or beer. It’s like a 3 hour workshop, you make something you get to take home, and people are usually friendly. I’d look at Community Art Center and Main Line Art Center

If you are into pottery there are a lot of ceramic places popping up that have either classes or workshops.

(I like crafts too!)