Great Pyrenees Puppy Needs Rehome

4 month old great pyrenees puppy needing rehome.
I got this pup at 6 weeks and have been loving him but it seems he is a little too aggressive for my kids.
I have a 2 and 3 year old.
It sucks to do this but i rather my kids be safe.
Would be better if he goes to somebody with older kids or somebody older in general.
He is up to date on his shots.
Asking a small fee to know he goes to somebody that will want him.
Comes with cage, new bag of food and toys.
Is house trained and still working on potty training (understand it like 75%).
Gets along with other dogs and cats.