I'm thinking of probably trying out:
Red Cherry Shrimp
Corys or Pygmy Corys
I already have 2 platies and don't want to go overboard with the stocking.
Have you seen chili rasboras? Boraras brigittae. They're awesome nano fish with personality! lol Two platies in an 8G is kinda overboard already IMHO because of they're bioload. If you do go with corys, definitely go with pygmy corys.