If they are safe to keep as pets, if not they should live out their lives in a sanctuary. They should never be euthanized unless their quality of life is compromised.
The prospective adopters must be vetted to find out if there is cruelty to animals in their background, and if the animal is not the average type of pet, that the adopter has the knowledge to care for this special animal properly.
We owe these animals who have been tortured for the exclusive benefit of mankind more than we can ever give them. The very least we can do is give them loving homes for the remainder of their lives. There must be a guarantee included that if not adopted it will live out the rest of its life in a sanctuary, and never be euthanized except if they lack
quality of life. These beings have suffered so much for us,this
is the bare minimum we can do for them.