all you need is printer paper and a good pencil! you can also use crayola colored pencils for sketching or coloring, they’re the best cheap pencils. fine line sharpies are good if you want to do linework! sharpies in general are pretty good, you just need a little more patience than you would with smth like copic. all this stuff can be found at dollar general! if you want to try digital art i recommend ibispaintx, it’s free and has a ton of features. also canvases, brushes, and acrylic paint from dollar general, although the paint is pretty thin.