My first question is why do you want a rooster? The only reason you need a rooster is if you want fertile eggs. Anything else is personal preference. There are plenty of people on here that would not have a flock without a rooster, whether they want fertile eggs or not and whether they free range or not. There are plenty of people on here that would not let a rooster near their flock whether they free range or not. We all come up with our excuses whether we want a rooster or not but those are excuses. The only true reason is whether you want fertile eggs or not.
I also don't do ducks or geese so I'll only talk chickens. Why you want a rooster will have a lot to do with how many roosters you may want. How much room you have and how you manage them can have an effect. Each rooster has its individual personality, some can coexist in a flock while some can't. My normal recommendation is to keep as few roosters as you can and still meet your goals. That doesn't mean you are guaranteed problem with more roosters, just that it is more likely.
I don't get into one breed of rooster being more docile or aggressive because of breed. If you read through enough threads on here you will find a rooster of any breed that is tremendously docile and great but you will also find a post where a rooster of that same breed was a beast, RIR, Silkie, Buff Orpington, or anything else. You are dealing with just a few roosters, you will not have enough of any breed for averages to mean anything. There is a lot of luck in which individual you happen to get. Part of it is that a good breeder can breed aggressiveness or docility into a flock. You still get individuals but on average over time you can make a difference. Part of the problem with that is many breeders and most hatcheries don't care about those traits, they select which chickens get to breed based on other traits.
Then you get the thing that Aart brought up, nature versus nurture. How much of a rooster's behaviors are based on how they hatch and how they are brought up. A lot of experts a lot smarter than me argue about this. In my not necessarily humble opinion both play a part. Some chickens (male and female) are destined to be brutes from hatch regardless of how they are raised. Not that high a percentage but some. With most chickens nurture can have a huge effect. I'll let others discuss what behaviors affect that but since you have a history of having human aggressive roosters I'd think you should think about why you want a rooster pretty hard. I think they can sense when you are afraid of them and that can lead to aggression.
I don't know why you want a rooster. If fertility is not involved the correct answer for you may be zero. If you decide you do want one or more roosters, think about your other goals and how a specific rooster may affect that: size, appearance, or something else. It won't hurt to pick one that someone says is more likely to be docile but in my opinion that is pure luck when dealing with a small number of roosters.
Good luck and welcome, glad you joined.
