Welcome to BYC. Glad you decided to join our flock. If you are going to use the rooster for breeding, you want a calm and gentle rooster as you don't want to breed aggression into your flock. I would recommend getting a rooster from one of the breeds that has a well deserved reputation for being calm and gentle such as Australorps, Faverolles, Orpingtons, Sussex, Cochins, or Brahmas. Of course there can always be an exception with any breed. If you are wanting to breed high egg production into your flock, Australorps are the best layers on this breed list. Please feel free to ask any questions you may have. We are here to help in any way we can. Cheers.