I got my first group of 10 chicks about four years ago, raised them together and two ended up being roosters. Once in a while they would square off, but they wouldn’t fight. One became dominant. I ended up rehoming them to a zoo only because I didn’t need roosters and they were brutal to my hens. The hens were relieved. When my buff Orpington became broody and nothing else worked to break her of it, I got two fertilized beautiful blue eggs. She hatched both of them out. Both were roosters! They got along perfectly. But again, I rehomed them to a nearby farm together. They’re still doing well together. I would say if you want to keep them, do so unless it becomes an issue between them.