If you're in the Houston area... Hong Kong market has the biggie size for $15...Tabasco also has their Sriracha version at Walmart.
https://www.walmart.com/ip/TABASCO-BRAND-Sriracha-20oz/49769567
Else there's an import that is pretty decent..
https://www.amazon.com/Cholimex-Tuong-Vietnamese-Squeeze-Bottle/dp/B0108MINLC
