What can I use to substitute either vegetable or olive oil for a recipe to marinade chicken? I have butter and?

coconut oil.What can I use to substitute either vegetable or olive oil for a recipe to marinade chicken? I have butter and?
butter and coconut oil both will burn faster, which is why veggie/olive oil is suggested. however, out of the two, butter would be a better bet.What can I use to substitute either vegetable or olive oil for a recipe to marinade chicken? I have butter and?
the link below says ';you can even leave the oil out entirely -- although for things like lean meat or skinless chicken the oil is rather necessary for the cooking process.';