I wouldn't rule out another male all together if I were you. I may be partial to males but we have 3 males and haven't had any problems with them getting along. We have a dominant male and a entirely submissive male and one that falls in the middle. In my experience, it is the males who have a more docile and even temperment then the females. We actually had tried to add a female into our home and it was her who ended up going back to the breeder because of her attitude. We added another male and havent had a single problem.. Just passing my thoughts :lol: good luck in your search.
P.S. You didn't say if you were looking for a long or short coat?
P.S. You didn't say if you were looking for a long or short coat?