OK, here's a couple more that are famous and great for touristic reasons of history /culture /good food /great landscape /etc

Xi'an (one of the ancient capitals of China, starting point of the traditional and new Silk Road), Guilin (every single time they show China in cartoon, with giant mountains and winding rivers, they're basically showing here), Shenzhen (the new hyper modern high tech city), Guangzhou (old English name was Canton, as in Cantonese food), Suzhou and Hangzhou (historically famed for being chill and beautiful, lakes and canals etc), Hainandao (Chinese version of Hawaii), Nanjing (another ancient capital of China, lots of culture), Harbin (lots of Russian architecture here, and a FANTASTIC and huge ice sculpture show every year)