Im in the process now of decorating and cycling my new tank and so i was wondering whats the best small fish that i can succesfully keep in a school inside a ten gallon tank

I would think a small school of neon tetras would be good but im setting them up with my other freshwater tank that will be decorated like a beautiful saltwater tank (im gonna have blue gravel and lots of differnt shapes and colors of fake corals) so whats another good small fish, maybe platies, guppies,zebra danios,white clouds.......

Whats your opinion ?