I suggest you don't go anywhere in Guangdong, it's a mess. I have relatives who have gone to work this year, and as a result, they are often stolen and robbed. There are too many hooligans, and personal safety is not guaranteed. The local security is dark, and officials collude with each other. It is better to go to some big cities such as Beijing and Shanghai, where the working environment and conditions are much better and the rights can generally be guaranteed. Generally, there is nothing to prepare, just being a man and dealing with people. Some people will say that cities like Shanghai and Beijing have high consumption. In fact, this mainly depends on the individual.