(1) Huang Ruozhou's "How to Write Pen Words Quickly" is the most suitable one, which is fluent and elegant, but it is still quite easy to identify. Basic fonts are basically derived from cursive scripts written with brush. But it's hard to find it now. It may be on Taobao.
(2) Dong Qichang anonymous biography, brush copybook, extremely natural and unrestrained, elegant and powerful. Very suitable for scribbling with a pen.
(3) It is easier to find Li Fangming's running script in bookstores now. Elegant style, a little wild