I've had good luck with Surecan. They don't warp in heat, have little chance of leaking and are a durable poly can.
https://www.amazon.com/Surecan-Crispo-Gasoline-Plastc-5gal/dp/B0761WHH8L/ref=sr_1_1?dchild=1&keywords=surecan+5+gal&qid=1603665899&sr=8-1