If you want the best of the best you will pay for that. Sushi Gari and Sushi Seki are the only two places I would eat up there. Maybe the sushi Nazi , Sasabune ( but his rice is too hot and falls apart, although the fish is fresh)
Everyone answers w sushi recs-Japanese food is so much more than just sushi-or is that what you meant? A good option is Tokubei-on 86th betwen 2nd and 1st. You have a menu full of option including sushi and traditional Japanese fare.