Keep your favorite one roo with the girls. If the others have no chance at the girls, they will get along. Even bantams will fight for girls too big for them. They will start to make a pecking order at liek 3 months old, but unless really challenge the line up, won't fight fight till maybe 4-5 months old, and by 6-7 you may start ending up with bald hens. I personally make soup.