High end wagashi
Does anyone know if there is anywhere that has high end wagashi in the area
I think that's the best you can find. The main location is in Rockefeller Center. They have another smaller one at Mitsuwa in NJ. Toraya had them but they closed down years ago.
Sometimes Aso-sensei at Kaji Aso studio in the South End will offer wagashi at the tea ceremony. At least he did the one time I went - but he was freshly returned from a visit to Japan.