theres obviously going to be a ton of fresh fish there...i went back in may and a lot of the places will give you samples of their smoked salmon, which is so delicious! the restaurants in the market and surrounding the market tend to highlight the fresh fish from the market, so i would just suggest walking around, looking at the menus, and seeing what each place has to offer.
I HIGHLY recommend etta's...their signature salmon dish is to die for!! its only a block or two away from the market, and was one of the best meals i have ever had in my life. their mussels are great too!