Asian grocery stores (e.g., H-Mart, 99 Ranch) often have the best selection and prices, carrying authentic Thai brands like Shark or Sriraja Panich .
A traditional Thai Sriracha that is sweeter and less spicy than the American versions. My Favorite Sriracha Hot Sauces - Viet World Kitchen
If your preferred brand is out of stock, these are highly-rated alternatives:
