go with the smallest, least aggressive ones you like first then any that attend to be more aggressive & grow quick last.
Try to either make it a all male tank or have fish that do not look alike. Example: Demasoni & male saulosi look similar & may go at it or may cross breed? Also more females to a single male.
starters: 12 Electric yellows to cycle for a week. next batch, dozen saulosi, next dozen acei, next dozen greberi, next dozen Aul of one kind or just males? Next a dozen Electric Blue Ahli (fryi), Next maybe Venustus? Insignus? compressiceps? (stay away from Tyranochromis & some nimbochromis, Ps kenyi, Mel aratus, chipokee etc. because attend to be real pricks unless you want a war tank? You could mix the 3 lakes of fish just start small first.
Also have no decor or a lot of it. Over crowding of decor & fish will cut aggression down most of the time?
good luck
me Dave