6 Neon Tetra and 2 Cory in 10 Gal, anything else?

Well I recently just got me 6 neon tetras and 2 Cory in my 10 gallon tank. I would like one more type of fish that is an easy care since I am a starter. Or is that pushing the limits of my tank? If so, maybe I can get one more cory or neons?