The Dude

Looking to add some fish to my 10 gal tank. I currently have 7 white cloud mountain minnows and a few bladder snails. I'm concerned about overstocking the tank but I would like a community tank at the same time. I would really like some Cory's but I keep reading that they do better in a 20 gal.+ tank and again I would be afraid to over stock the tank. Anyone have some recommendations?