If you want something on market socialism, Oskar Lange probably has the most well known market socialist model. You can find his books for pretty cheap. Robin Hahnel has very good critiques of market socialism, as well as communism, and markets entirely. You can see a really good video on youtube called the Case Against Markets. He also has a published article of that title. Well worth reading.

If you're interested in a radical take on China, I would recommend Minqi Li. He's an interesting guy. He took part in the Tiananmen Square uprising, was imprisoned, started to read Marx's economics and turned to the left. He has a good book, called, "The Rise of China and the Demise of the Capitalist World-Economy." You might not agree with everything, but he gives a really interesting tour through China from about the early 19th century until today, with lots of data.

Any rate, good luck.