[lil fu fu girl]

I don't think the problem lies in the breed of dog.
I believe the problem lies within the breed of parent.

Most rescues, (including myself), have seen the horrors of what young unsupervised children can do unintentionally.
Not just that, but a rescue pup usually comes with behavior problems that
need to be attended too. If you already have a young child and another dog, it is going to take up a large percentage of your free time to re-train
this rescue. Only you know your schedule. Do you have time to train another dog right now?
Best of luck with whatever decision you make.