I have several different roos right now. One of the best is my Orpington. He broke up a hen fight the other day (they were bumping chests, nobody was getting hurt) - it was super funny to see. One of my cochin girls (bantam) was on the war path for some reason and kept picking fights with the other girls. Well, she picked a fight with my silkie cross hen. My Orpington roo saw them, ran over in between the 2, looked at the cochin and "yelled" at her, then he actually stomped his foot at her and made her leave! Through this whole show, he never once touched the hen, but he did get his point across
He is also very docile, even though he is a big heavy boy, and has never been mean at all. My husband was actually a little intimidated by him at first, but I told him to just walk up to the rooster and pick him up like any other bird. No big deal.
I also had 12 RIR roos (they came as packing peanuts with some ducklings) that were well behaved, and better guard dogs than our dogs! They never once tried to be mean to us, or anybody that frequented our place. But, if a stranger came onto the property, those roos were like piranhas!! They actually chased a grown man down the driveway
I thought it was amusing
The other roosters that I have that are very good to their ladies are my seramas. Go ahead and laugh, but they alert everybody to danger, find the goodies and call the hens, and are super sweet to us. If you aren't looking to have chicks from your hens eggs, then a serama would do. Obviously he couldn't fight off a hawk, but they can still sound the warning.