Let's dispel the BIG myth. A well tempered adult chow will bond to you almost as quickly as a puppy. Dogs are social animals, they want to belong to a pack. And yours looks real good to all of them about now. Male Chows are never placed with another male Chow, and most times not with any male dog.
Females are more forgiving, but same sex adoptions cause many problems.
Never adopt a Chow, male or female, as a canine companion dog, that is the same size and age as your present dog.