Here are a few YouTube channels that discuss modern Chinese history, providing objective and comprehensive content, supplementing many historical facts that were not included in textbooks.
Left is @zuowei https://www.youtube.com/@zuowei
Li Tianhao @leecehao https://www.youtube.com/@leecehao
History Bro @HistoryBro100 https://www.youtube.com/@HistoryBro100
These three channels each have their own focus, and when combined, the context of modern historical development becomes clear.
Left: Mainly discusses the late Qing Dynasty and the Beiyang government period, covering the Opium Wars / Second Opium War / First Sino-Japanese War / Self-Strengthening Movement, etc., in great detail.
Li Tianhao: I particularly enjoy the series on the history of the Republic of China.
History Bro: The discussion programs are excellent; I particularly like the two teachers Wu Qina and Wang Liben.