Walmart had a few 2 and 2.5 gal glass containers, but I would have to figure out a lid/airlock strategy:
https://www.walmart.com/ip/Anchor-Hocking-2-5-Gallon-Glass-Barrel-Jar/46887356
https://www.walmart.com/ip/Anchor-Hocking-69372MN-2-Gallon-Glass-Heritage-Jar/16486707
I was looking at the...