Chinese afterlife is a great topic, and one which you can approach from several angles. I can not hope to tell you where you can find such thing, for you have to first understand how the Chinese view the idea of death, which is very different from the Western one.
Foremost, you would require to choose a religious point of view: which one of the religions would you approach from?
In China, along the ages, the thinking of the people has been dominated by at least the following: Confucianism, Buddhism and Taoism. Also, realize that China is a HUGE country.
Although people might argue that Buddhism and Confucianism might not be religions, since they do not really have a God, they were used the same way religions were used, in explaining the way the world happened in a time when science was not a thing. They also provided for aspects of spiritual relief, moral compass and everything else you will find in religions.
Secondly, which time period are you going to talk about? Because the afterlife of the Chinese people of today is very different from the afterlife of the people of 100 years ago, from those of 200, and so on. In fact, depending on which region you are talking about, and the time period, they were under the influence of different thoughts. Since they were under the influence of a different religion.
And even inside the same religion, you will see that these have very different view of what is possible in the afterlife. What one should do, shouldn't. To the point that what might have been allowed in a region, in another not so far away from there would be seen as sacrilege and mean that your afterlife would not be an easy one. An example is the direction of which bodies were allowed to be buried facing...
