https://www.greenwichbayoysterbar.com/

It's a smaller spot and they only just started taking reservations for groups of 6 or more. I recommend going on off hours if it's the weekend, or you may be waiting for a while. Great spot though, the crab cakes are amongst my favorites, they have a nice variety of seafood options, a good spread of oysters and kind staff. It can be pricey, but seafood should be and I've never been disappointed by their food or staff.