Tourist to Employment Visa

I am looking at moving to Shanghai for work, where my British partner lives and has set up a business. I am not getting anywhere with job applications as I don't have an entry permit in place. Am I able to enter on a tourist type for 3 months and job search while I am there. Would employers be more willing to help with an employment type If I am able in the country? If not what is the best approach to take in getting a job in Shanghai as a Brit with no entry permit!
Thanks