As far as I know, it is easier to rely on friends. For example, many big companies in Shanghai rent cars from Yongda and buses. If you know the personnel or general affairs departments of these companies and they call, the leasing company will be willing to rent a private car.
But don't expect too much in terms of price. I once asked a leasing company, and their quotation was very low, and they were responsible for the accident. So you need to find more comparisons.