which visa should I apply and how should I go about it? Is there any other stuff that I should know?

You should get a Z type. First, hunt for a job in China. Second, get a work permit and invitation letter from duly authorized unit with the help of your employer. Third, prepare your passport, a copy of it, and a filled V.2013 application form affixed with your recent photo. Last, take all these documents to the CVASC and apply for the Z type. After you enter PRC with this Z type, you should convert it into a temporary residence permit within 30 days at the PSB.