Which is the best surface for oil paints? linen canvas, wood panel, or paper?

linen canvas

Explanation:

the oil paint is really thick so if you use it on a somewhat rough canvas and use something to thin it out it will spread nicely

The most common surface for oil colours and one that has been used for centuries is stretched primed canvas. Alternatives include wood panels and medium density fibreboard (MDF), which last a long time and will not bend.