Since I can't pick a very favorite how about thing I've always stocked in my community tanks?
Gouramis, goldfish, weather loaches, and platies.
Right now I have an odd community that needs to be sorted into several tanks of marbled gobies, violet gobies, senegal bichirs, and an oscar......and uh zebra danios lol (alright those are food)....those guys with the clown knives, the jack dempsey, and the pond fish are my favorites.
ummm I think that's about half I can't decide between