Where to find things to print

Holy smokes, I had no idea there were so many. Usually I just search Thingiverse. I think it's safe to say I'm pretty active there. But 3D Printing Era lists 16 sources for printable 3D models and I'd be remiss not exploring some of these. Some are paid sites, which is cool, I guess. Many are not exactly focused on FFF printers. But there's more than enough there that there should be no reason to say "I don't know what to print".