I want to work in china as an aupair. im british and 20 what visa would be the best

Cassie, I think it's very difficult to find such a job. Generally speaking, you should apply for a Z type. In order to apply for the Z type, you need ask your employer to assist you to get the work permit. If you work as an aupair, I am not sure if you can get the Z type. It costs 66 Sterlings to get the Z type.