6 year old male lab

I am looking to find homes for both of my dogs due to some major life changes.
This decision does not come easily but it is essential in order for them to have the best possible care.
Comet is a 6 year old male lab.
He is not fixed, does excellent with other dogs and minds his business with cats.
All he cares about honestly is food and pets! He uses a kennel which he will come with when I leave and sleep.
He is potty trained but will mark if there are other dogs around.
He’s great with kids but because of his large size I’d prefer him go to a home with children who are older.
He is not current on any vaccines and does seem a little shy around new people.
Not in an aggressive or anxious way, just honestly shy.
He’s a very good boy and deserves the best home he could have.
I will be asking a rehoming fee only to ensure he’s going to the best possible home.