Who are the four gods of wealth?

Five God of Wealth: Fan Li (Zhejiang merchants), Guan Zhong (Huizhou merchants), Bai Gui (Shanxi merchants), Bi Gan and Zhao Gongming.

There is also a saying that Zhao Gongming, the true god of wealth, Fan Li, the literary god of wealth, Guan Yu and Wu Caishen, the quasi-god of wealth, Lishi Xian Guan and Liu Haichan.