Hi, guys, I have just found these two papers that analyze Chinese BL genre's relationship with classical chinese literature and what its male audience appreciate in it.
They're very interesting.
https://www.researchgate.net/publication/353322308_Contemporary_Danmei_Fiction_and_Its_Similitudes_with_Classical_and_Yanqing_Literature
https://dergipark.org.tr/en/download/article-file/1542981