All of those fish are zebras of some sort, orange/pink ones are probably red zebras the others who really knows but they look cool
You can add all sorts of african cichlids to the mix with these guys but I would steer towards more mbuna (zebras, demasoni, yellows, melanachromis etc) and maybe haps or if you can find them big male peacocks so they can actually stand upto the zebras aggression..