There is Taoist Alchemy. You might try reading Mantak Chia's books on Tan Tien Chi Kung. It is my understanding that Taoism operates from a theory of Oneness, which moved in the opposites of Yin and Yang, and then on through creation. I don't know of any Taoist deities, but as I have not made more than a cursory examination of the religion I may be mistaken.
Taoist Alchemy had two main branches, Waidan and Neidan, or external and internal alchemy. External alchemy is focused on potion making, transmuting the physical objects to achieve magical results. Internal is focused on transmuting your soul to achieve a higher sate of being. I don't know much about Taoism, sadly. I don't know how their Deities function.