The faster way is to go to a stationery store and buy the kind of hard-tipped calligraphy writing paper that has been prepared.
It is the kind of 4A paper that already has grids on it, including banners and vertical ones, and there are many styles and shadings. You can choose different styles according to the writing content.
This kind can be used for professional calligraphy exercises and competitions. It is formal, beautiful, and affordable.