Finally, You'll have to get paper. Bristol paper is frequently used by illustrators as it is very thick and it has a smooth finish. Watercolour paper is yet another good selection mainly because it will never buckle if you implement lots of ink. You may also use illustration board https://how-to-draw-with-ink-pens54321.bloggazza.com/34608764/the-smart-trick-of-ink-drawing-for-beginners-that-no-one-is-discussing