I use canola oil in my propane cookers here. It’s about a third the price of peanut oil. Not unusual here on the weekends to have 4 cookers going. One for fish, 2 for French fries and one for onion rings and poppers and shrimp. I’ve never noticed a difference and nobody complains if the walleye are fresh.
If just a couple of us then lard in cast iron is the only way to go.