Phenazepam The problem with Chinese novels is that many of them just don't have translation or are poorly translated. For classics, I would suggest reading the Four Great Classical Novels (四大名著). From that, if you have enjoyed Romance of the Three Kingdoms, read Records of the Three Kingdoms for a more accurate history; if you have enjoyed Dream of the Red Chamber, read Ba Jin's Torrents trilogy and Cao Yu's Thunderstorm for a similar theme (the downfall of a prestigious family) with different historical backgrounds; if you have enjoyed Journey to the West, read Strange Tales from a Chinese Studio that reflects social conflicts through stories dealing with the supernaturals and Classic of Mountains and Seas that deals with a fictional geography and mythic beasts.
Lu Xun is the most well-known modern writer for his revolutionary ideals for the new China and cynicism against the feudal society from a leftist perspective. He has a sarcastic writing style and most of his writings reflect the morally corrupted societal norm under traditional values inherited from 礼制. Lao She is quite similar in writing style and themes compared to Lu Xun's. Mao Dun, another leftist revolutionary during the Republic of China era, is famous for his realism and depiction of the city.
Misc: Eileen Chang is one of the few female writers who made it out. She writes mainly tragic romance fiction with an elegant style that provokes strong emotions; Alai is a Tibetan Chinese writer, so his novels have a great emphasis on Tibetan traditions that lead to an exotic imagination; Qian Zhongshu's Fortress Besieged (my favorite).
After Cultural Revolution, we had literary movements such as 乡土文学 (nostalgia for the tough yet simple living back at countryside under the urbanized China), 伤痕文学 (depicts the collective trauma during the repression), 先锋文学 (experimental literature with an emphasis on stream of consciousness as a rebellious response to traditions under heavy western influence), 朦胧诗 (poetry movement inspired by the "New Enlightenment Movement" and known for its lucid style, rich symbolism, and embrace of individualism), etc.
I could provide more suggestions, but then I realized I already compiled a wall of text lol