Best thing is just to visit several LFSs and look at their tanks and see what interests you. Asks questions about their fish, compatible, any special requirements, etc. Then if it interests you, write it down and when you go home, do more research on the fish. Sometimes LFS don't really watch there fish as closely as us hobbyists, so they might have forgotten to include something.
Also, some LFSs state like certain fish, like skirt tetras, are community fish and are fine to go with any other fish. This is incorrect. Those who have kept them, know they can be fin nippers and most have a heck on an attitude.