honey gourami's, pearl gourami's, blue or three stripe gourami's. Bassicly all of the smaller gouramis are peaceful. Guppies, platties, swordtails. Also bronze corydoras as good for cleaning the bottom of the tank. Bristlenose catfish are good for cleaning the glass and are peaceful. Maybe even some killifish or small south american cichlids. Iv had all these fish in the same tank together and had no problems.