Grass: Jin, Tang, Zhang Xu, Huai Su, Sun,, are all very powerful. Of course, there are many famous artists after Tang, such as Huang Tingjian and Wang Duo.
Rev: Tang, usually called "thinking in style". But there are many epitaphs of Wei Kai, also known as Wei Bei, mainly yuanshi county County, Yuan Huai, Yuan Lue and Yuan Ni in the Northern Wei Dynasty.
Li: There are various historical sites in the Han Dynasty, including Zhang Qian, Cao Quan and Cao Quan. Then there are Han bamboo slips.
As for Oracle Bone Inscriptions and Jin Wen, they are not so practical now.