Being chicks raised together will have no influence. Wanting them all to be nice and get along also will have no influence.
Just looking at the limited picture, your run looks bare and empty. I have found it is much more interesting to chickens if it is very heavily cluttered with mini walls, roosts, platforms birds can get under and on top. From the picture, there is no way for birds to get out of sight from each other or away from each other, which will tend to provoke aggression.
In chicken society, giving way, getting out of sight, giving up prime location are all ways of "bowing to the queen or king" if birds are not able to do this, it often times provokes a stronger and more aggressive response.
New baby chicks will not help this situation for months. In a limited set up, more hens often times is not a viable answer. Roosters do not understand sharing, they each will want all of the hens.
It might work with the clutter, but you do need a plan B, set up and ready to go to separate and cull one of the roosters if it does not work. Culling meaning separating from your flock as you choose. A 5 foot handle fish net will work to separate fighting birds.
Mrs K