My dogs all get along together fine.
Venus has no use for other dogs.
Marz LOVES other dogs although in her younger days she was pushy enough to scare the bejesus out of them. She'd think a fight was good fun.
Nyx used to be VERY reactive when I first got her but all bark, no bite. She pretty well will just ignore other dogs unless they get in her space then she may give them a snark enough to scare the crap out of them. Or at least she used to be like that. She's mellowed out quite a bit in her old age.
Arez loves other dogs and if a fight started she'd be happy as a pig in crap thinking it was FUN!
Tank is fine with females/pups/small males when introduced on his own property in a controlled environment but anything in public is prey. He is not good with other males.
Patches was pretty damn bitchy when I first got her but she's mixed into my pack pretty good but she is actually the one I have to be the most carefull about when introducing new fosters. She'd like to start something. She's not a pit. She's a mutt.
I don't put them in any situation where they would have a chance to act on their DA but all of them could easily become involved in a scrap if the situation was right, I mean wrong.
Their enviroment is very controlled and I set them up to win so I don't feed the DA that is there.