IMO Breeds really have little to do with cockerels behaviors. It is much more dependent on the space you have, the way you have the space set up, the number of older birds, and the individual bird you happened to get.
It is often times a crap shoot, sometimes you get a nightmare, sometimes a fair rooster, and once in a great while you get a flock master. It is IMO the luck of the draw.
I do kind of side with the idea, that a bird raised up in a flock, with older flock members and IS NOT A PET, tend to, generally speaking, kind of, sort of make better roosters. But nothing is fool proof. If a person could come on here and say, if you do this, then that will happen and you get a perfect gentleman...., but they can't.
The best way to get a good rooster is a sharp knife. You don't keep the rotten ones.
Another idea - is look at the feed store, ask at poultry clubs or 4-h clubs, ask for a cockerel/rooster that is close to a year old, raised in a multi-generational flock, in similar circumstances as your own flock, by a person who would have culled if he hadn't been so darn nice. That is a good rooster to get.
Mrs K