I have had all male peacock tanks for many years now. I'm a strong believer of color being an important influence on aggression. The other, and most important factor is to avoid same family - different location peacocks. There are several different jacobfreibergies. You are better off with just one location from that group. Same with stuartgranties.
I would recommend you pick a jake, a stuartgranti yellow, a stuartgranti blue, a maylandi, a baenschi, and get them all started at the same size. Also, get three of each of whatever you decide on. The dominant male will only bother the subdominants of his same type and be guaranteed a good color male of each clan you have.