Try these, available on this site or others. I bought a set of 4 20 L (5 gal) , and also 2 10L (2.5 gal) , and 2 5L (1 gal) ones along with spouts and gaskets and couldn't be happier. Likely I'll never have to buy another gas can.............especially cheap s**t plastic ones.
https://deutscheoptik.com/5-liter-jerry-can.htmlGood luck,
Geno