Koko's Pub for Crab Cakes, Faidley's for an old Baltimore staple style of crab cakes, LP steamers for crabs, steamed shrimp, or soft shell sandwiches, The Penny Black for mussels.

Anyplace that has Rockfish or Snakehead on the menu probably does it decently, but I can't think of anyone that consistently gets those in (Myth and Moonshine used to be my go to, but they have since closed).