I stopped by the Supply Library on 50th Street in West Philly by Black Hound Clay studio and BOY IS IT FULL! Posting some photos below so you can see the types and colors in there. Lots of wools, some acrylics, a lot not labeled. There seems to be some hand dyes stuff in here- really high quality fibers! I would go check it out if you're looking for yarn because that's all there is in there today :-D
I also like this lil' shroomy hidin' in here.