There is a nice article in this week's New York magazine about the incredible diversity of supermarkets in New York. (Link in bio.)
Shout out to a few additional spots - the legendary Kalustyans, Sahadis and Damascus, Despaña, Patel Brothers, Zabars, Hong Kong, Mediterranean Foods and Titan Foods, Taste of Russia, plus Lucca and Nijiya in San Francisco. And that's not even close to a complete list! Import... it makes the world go round.