My name is Joby!

We have had him for 3.5 years and although he has always been the sweetest boy, I believe that he is unhappy. These last couple weeks have been the hardest, he has nipped at the kids(no visible marks) but I don’t believe it’s due to aggression issues, more like overstimulated. I think my kids are getting to be too much for him and ADHD is running rampant through our house. When we rescued him, they said he was German Shepard mix and 1y.o. so that would make him almost 5? I think he might be a little older, though. I believe he will thrive in a home with other dogs to play with and older, middle school aged, kids!
A few things about him:
He loves car rides and to go on walks but hates for them to end. Any kind of long-lasting chew treat/bone is his favorite.
He LOVES other dogs. He will cry if he sees another dog and can’t play!
He loves going to the vet.
He is incredibly loving and sweet.
100% housebroken.
He will come with a bag of food, harness and leash, fresh bath and nail trim.