Look for Beef Short Ribs at Korean grocery stores (Galleria, H Mart, Paldo World). They are trimmed of fat, beautifully marbled, and very meaty.
They can also be found at Asian/Chinese Grocery stores (T & T, Food World, Ranch Market). They are a bit fatty here but the price point is very good.
From time to time, thick-cut beef ribs can also be found at typical grocery stores. No Frills, President’s Choice, Albertson’s, Safeway, Whole Foods, and even Costco. Or look for them at Boutique Butcher Shops.