if you want something cool get a dwarf puffer fish....
if not get something like Molly's or balloon Molly's....zebras....betta....all types of tetras including skirt....neons.....any type is fine...any of these fish can be keep to together....just don't over stock....and have fun....
p.s. no clown fish....Saltwater....and no kissing fish they get up to 12in each...