I have a very sweet 4 year old entire male Springer, and have recently started looking for a second dog. Our current dog is lovely - he can get a bit anxious, hence still being entire, as recommended by an accredited behaviourist we worked with a couple of years ago. He is often walked with a friend's neutered male Spaniel, and I have noticed that he gets a real confidence boost from being with another dog, and really seems to enjoy himself, so think it might be good for him to have some canine company. He likes to get a lot of reassurance from us when he's not sure about something, and I think a strong bond with another dog might be a positive thing for him.
We recently applied for a male rescue dog, but were turned down as he was also entire. The rescue said that even if our boy is laidback, they would be wary of another male, whether neutered or entire, finding him threatening due to being entire and this leading to fights. I had kind of assumed we'd get another male dog, as it's what we're used to, but I'm now thinking this won't work, as our current dog has shown no problematic behaviour due to being entire, and I don't want to neuter him for the sake of it. I also really don't want to stress our current dog out by introducing another dog, as he is obviously our priority.
I'm thinking the most logical option is a spayed female rescue, but does anyone have any experience of which sexes mix best together? We are also debating a puppy, but I don't want to be in a position where I have to neuter the puppy or risk fighting. But how would it work if we got a female puppy when she reached her first season? We could split the dogs up and one of us could stay elsewhere during her first season, and would plan to spay after this, but I'm just not sure... Or if we have an entire male is another dog off the table? Help!