Hello arifpatelprestondubaiuk and welcome to the ArtRage forums
Well, you can of course use whatever canvas texture works for you but I suppose for a “traditional” look a good starting point would be one of the textures found under the ‘Canvas’ Presets in the 'Canvas Settings' Panel.
On the occasions that I do use Oils, my personal favourite is the 'Essential Canvas' preset that comes with AR, although I do tweak the Grain and Roughness settings to suit the size of canvas I’m working with.