there are some exceptions, but in chinese cuisine, soups typically cleanse the palate much like a sorbet; they’re typically drunk from one’s rice bowl and are usually relatively simple. fuchsia dunlop’s Every Grain of Rice has a selection of simple soups from different regions across china.
phoenix claws and jade trees categorizes dishes by cooking techniques but chapter 5 addresses stocks of various complexities and chapter 13 has a list of soup recipes.