This will be controversial given the "that's not true communism according to my 170 year old theory book" crowd that sometimes permeates western leftists like a disgusting plague; but Xi Jinping. He's released 6 or so books, he has a literal Doctorate in Marxism, and has documented China's success and failures in its strive towards communism, including very good answers for every single criticism western Do-Nothing marxists have towards China's Dengist reforms and their incredible economic success.