Need advice. Thinking of rehoming some of my dogs. Please help.

Hello po. This is a desperate plea for help. Thoughts please.

I have 11 lab/beagle mix dogs (4 fem, 7 male) The dogs are mostly products of two accidental litters.
Ang mahirap, they developed pack mentality. If one barks/attacks another dog, lahat sila sugod and attack. So 2 of 11 dogs are not their kind. 1 is a rescue shih tzu and yung isa ay lab/belgian na anak ng isa sa mga kapatid nila na i gave away. Silang 2 yung laging inaaway. The shih tzu and lab/belgian were moved to different rooms na hindi accessible ng mga aso but nagpapang abot ang mga aso with the lab/belgian pag papalabasin to pee/poop.

Ang dilemma namin right now is we have a new kasama sa bahay replacing our old ate na kinalakihan ng mga aso. We are super scared na baka she gets attacked or hurt. Masakit man and last resort, but im thinking of rehoming some of the dogs :( To be safe and hoping na some of the dogs will live freely.

Btw, 3 of 11 are kapon na. Will continue the kapon when new ate gets settled sana. Please feel free to leave advices. Maraming salamat po.