I keep my Killies in a community tank with Corys & Ottos and 2 GAEs atm, but I have also keep them with rummy nose and cardinal tetra, blue rams, kuhlius ... others I have forgotten. In all cases I have not had a problem.
I would recommend (and I think this spelling is right);
Aphyosemion australe
Aphyosemion Striatum
Aphyosemion Bitaeniatum
Pseodepiplatys annulatus
Poropanchax Normani