Fish for a beginner?

I want to take part in the fish hobby. I am a beginner and I need beginner fish, any suggestions? By beginner fish, I mean fish that won't try to attack or nip at each others fins. I would prefer a variety of fish that all get along very well. I have a 10 gallon tank and I know the rule of thumb, 1 fish for every gallon. I also have a filter and something that blows bubbles in the water (air thingy). Thanks for all your help!!! I prefer freshwater fishies please!