The climate in Guangdong and Hubei is too hot. Then I went to Wuhan in summer!
It's quite hot in the south, but Fujian has a sea breeze in summer, and it often rains, so it won't be too hot. Jiangsu and Zhejiang people are beautiful and girls are not bad.
Namely Jiangsu (the cities around Shanghai), Fujian (Xiamen) and Zhejiang (Hangzhou). It's good for you to be lively in Shanghai! But the environment is not as good as the first few. If you find another place to live, it must be along the coast, otherwise the environment of riverside cities will definitely be higher than other places.
I traveled all over the country and stayed in the above-mentioned places for at least three months.