DS2 (5) just wants to push other kids and for them to push him back which is totally isolating him.
He needs something to ground him. Therapist recommended a weighted backpack for him to carry around. I was wondering about a backpack with a heavy bean bag style toy inside so he has a reason to carry the backpack (because his little friend is inside), and then he can take the toy out and play with it / talk to it if he is bored or lonely at playtime. I was also wondering if it could sit on his lap to provide so pressure, and if I can find one that feels nice then that's his tactile fiddle toy sorted too.
How does that sound? Would it work? Any suggestions for where to buy?