Take a look at the local shelter first. The shelters where I'm at always seem to have Labs. Some will be Lab mixes, but sometimes you can find pure breed if that is what your heart is set on. Our last 6 dogs have all been shelter or breed rescue.
Contact a Lab Rescue in your area they might have some that would be right for what you are looking for.
Our last rescue was a shelter rescue Border Collie/Retriever mix, my son picked him out. "Rocky" was only 4 months when we got him. He 3.5 now and we couldn't have found a better buddy/fit for our family.:001_smile: