I am so sorry for your loss also. You might contact Golden Retriever Rescue of Mid Florida
Golden Retriever Rescue of Mid-Florida, Inc. and Joshua's House,
Home Page for Joshuas House for Golden Retriever Rescue
There is another golden retriever rescue group around too, but I don't know their name. Also you might google for Lab rescue orgs. They're loving goofballs too. Good luck to you and your Wheaten in finding a new friend.