A 10 gallon is too small for most of the fish you are considering. Chichlids are aggressive and need lots of room, goldfish need room to grow and be messy, a community tank is hard to fit into such a small tank. Honestly if you want some of these fish you will need a 30 or 55 gallon aquarium. A betta will be very happy in a 10 gallon, 5 guppies or platies, 10 small schooling fish like neon tetras. If you work hard on water changes then you can over stock a little. Maybe some live bearers, a small group of schoolling fish and some kind of bottom feeders.