Ethical dog rehoming?

How can I go about ethically finding a new home for my in laws' dog? Preferably where I could actually meet the new owner, not just dropping off the dog at an organization and hoping they don't euthanize, and also not necessarily posting in those FB groups where there might be weirdos and puppy mills.

They have a beautiful dog that has tons of energy and unfortunately has killed a chicken once or twice, but is overall sweet and has never bit anyone.