Need some help with one of my baby chicks!
Did they tell you the breeds?
It could be a bantam, so would be smaller than the others.
Holding it won't hurt.
If others are trampling him, I'd pull a friend and put 2 in a brooder of their own, at least for a bit, where they can still see the others so you can easily integrate again later. If his pal still runs over him, then just him in a box where he can see the others and a stuffed animal he can cuddle up with.