I would second Neptune Oyster but be prepared for a wait if you go on any night a prime dinner hours. They do not take reservations although they will take your cell phone number and call you when seatring opens up so you can stroll around the North End while you are waiting. My other rec would be one of the Summer Shacks.
63 Salem St Ste 1, Boston, MA 02113
310 Northern Ave, Boston, MA 02210
summer shack has only one main dish that i order, the pan fried lobster, but it is my favorite lobster dish of all. That said, if you go to the Alewife summer shack, then you should have no trouble parking for free. i have no problem waiting, if people call me on my cell phone.
But i like the fish in the tank restaurants in Chinatown including Peach Farm, East Ocean City, Jumbo Seafood.
I find it hard to believe that I'm one of the few here who turns to some of the Boston steakhouses and national chains for some very delicious seafood meals. I've always had well prepared local fish dishes from McCormick and Schmick.
Abe & Louis' has a fabulous swordfish chop. Sooo moist, it melts in your mouth. Served with the best jasmine rice in the city. Their shrimp and scallops Louis are marinated and grilled to perfection (I'm making myself hungry).
Real hard to beat the crab cakes at the Palm, unles you like something else in your crabcakes besides crab. These are nicely complimented by their Monday Night Salad.
Grille 23 & Bar does and outstanding pan roasted monkfish, and there side dishes are all delicious.
The Capitol Grille on Newbury has an unbelievable tuna steak and a really terrific wine list. Service is always outstanding there.
These are a few I like to do business with. Always consistant.