Is it cycled? If not, you'll want to do that first before you add any fish.
What kind of fish do you like? Fish with lots of personality? Fish that school? Would you like a tank with lots of little fish or a tank with a couple of large fish? Maybe an all-bottom feeder tank (cories, loaches, a small pleco) with a nice centerpeice fish? Or maybe the other way around? What kinds of colors do you like in fish? Sorry for all the questions, but I don't know what you like, LoL. But if your just looking for what other people would stock it with if it was their tank, then I would have:
One large school (10-15) of tetras (maybe neons, glowlights, or rummy-nosed tetras)
A center peice fish (an angel, but then I couldn't have the smaller tetras, so maybe a gourami of some kind)
And a school of 6 cories (not sure which kind)
And if I didn't have as much tetras (say about 10) then I would get 3 kuli loaches
Thats probably overstocked though
