Welcome to the board. Sorry for the loss of your Lab, it's a hard thing and it does take time to make the decision to get another dog.
There are several good breeders on this board who may be able to help you with your search, and I'm sure they will weigh in at some point. You may want to familiarize yourself with the OFA website, ofa.org, it allows you to look up health clearances of a dog if you can get the registered name or AKC reg number. Since Labs are prone to many hereditary problems, you need to do your due diligence in making sure the breeder is doing ALL appropriate clearances.