Personally, I suggest pens, first of all, because copybooks are basically pens, and secondly, pens are more common and the quality is better than art pens. There are many high-end brands of pens. Third, artistic pens need some basics of brush calligraphy to write the taste, which is not as direct as hard pen calligraphy. Fourth, pen writing is more extensive, and the properties of signature pens, carbon pens and pens are closer.