I’ve had multiple Wyandottes with Orpingtons, Dominiques, and a Sussex or two. My Wyandottes were not bullies. We have one now that is top of pecking order and she’s not even really mean. Just in charge
They should be fine. It’s more about the individual than the breed. I have a mixed flock with some Wyandottes and there is one who is more assertive and near top of pecking order and her mother—another Wyandotte— is near the bottom.
The most important thing is that you have enough room for...