Whatever she is, she is gorgeous. The black tongue, excellent pigment and breadth of her muzzle make me say chow mix, but the rest of her does look more like a husky. But I would say she could be a mix of akita, jindo, shiba, samoyed, spitz, husky, malamute, etc. It's really hard to say. But those tiny cute ears and curled tail scream
northern breed.
I think you are right to wonder about possible aggression problems. While I have trained a few non-aggressive chows and one nice Akita, the vast majority are inclined towards aggression. Huskies, on the other hand, are not very aggressive. The problem I have seen with akitas (and jindos) is that they are very sweet as youngsters and become aggressive as adults. It's hard to see coming and shocking and upsetting when it happens. I wish I could tell you how to predict it, but I don't know how. The fact that she is a female and most likely mixed is reassuring. But I would still be working on exercises to prevent resource guarding, dog aggression and people aggression now, just in case.