Zhi Yanzhai's Re-evaluation of Zhi Yanzhai's Story of the Stone (this is a required reading),
Wang Guowei's Review of A Dream of Red Mansions,
Zhou, A Dream of Red Mansions,
Zhang Ailing's Dream of Red Mansions,
Hu Shi's textual research on A Dream of Red Mansions,
Yu Pingbo's A Dream of Red Mansions, A Dream of Red Mansions Research,
Cai Yuanpei's Dream of Red Mansions,
Xue Xiling's comments on Twelve Women in Jinling and the death of Daiyu,
Liu's Qin Keqing's Death, Painting the Scent of Fragrant Dust in Spring: An Interpretation of a Dream of Red Mansions, Liu Demystifying a Dream of Red Mansions, etc.
In addition, Lu Xun, Mao Zedong and others also have some incisive expositions on A Dream of Red Mansions, which can be seen.