Take a look at africans again, there are many different ways to go - Mbuna, Haps, Peacocks, Tropheus (which I'm currently keeping), Tangs, Vics, etc.
Colorful/attractive and very active and they do best in an overstocked environment to help with aggression - a direct opposite of how you curb SA/CA aggression.
For example, here's the types of Tropheus I keep (not my pictures)
Ikola
Nkonde
Red Rainbow
If I had a do over I'd do some Red Spot over Ikola to get some color other then yellow.