NEVER use gasoline to burn out your stump, even mixed with something.
Don’t use regular table salt, sodium chloride. That prevents anything from growing. Your garden store should have a product with potassium salts which encourages decomposition.
i have several stumps due to high wind damage. I cleaned up the rough edges and planted ivy. One tree revived and the others slowly decomposed. You can use almost any plants to make a nice garden feature.
We had our stump ground out and covered it with dirt/grass. The company ground it way down - I would use the less "chemical method "