January is Unchain a Dog month. Consider rescue by adoption.
We adopted or were adopted by a dog that that was living chained in an outside shelter. That dog became our friend and loved us so much he would stand between us and much larger dogs that seemed to him to be threatening us. He remembered his prior outdoor life and, if our house was too cool for him, would stand in front of his heater and shiver to ask us to turn the heater on. The wonderful fellow died aged over sixteen after being with us for many years.