Keyhole cichlid tankmates

#1
hi I was wondering what can go with Keyhole cichlids peacefully. I already have guppies,platies, a swordtail,Neons,Emperor's and they get along very well.
I was wondering what else can go with these guys.
I'm not sure how big my keyhole's are but I know that they are big i think about 3" maybe. Can Discus go with them or any other dwarf cichlid?:confused: