Here is the list of Post-Heaven Deities:

1. Yu Huang Da Di (Jade Emperor)
2. Wang Mu Niang Niang (Mother Heavenly Queen)
3. Tai Shang Lao Jun (The Supereme Lord) - the one that Taoists believed to be one of the manifestation of Dao De Tian Zun
4. Xuan Tian Shang Di (The Lord of Northen Hemisphere)
5. Tai Yang Xing Jun (The Lord of Sun)
6. Tai Yin Xing Jun (The Lord of Moon)
7. Nan Dou Xing Jun (The Lord Register of Life)
8. Bei Dou Xing Jun (The Lord Register of Death)
9. Tai Bai Jin Xing (The Secretary Officer of Jade Emperor)

What is the meaning of Post Heaven(ly formed)?

In this Universe, all things can be classified into 2 phases/sides, etc, or so-called the Yin and the Yang.

Pre-Heaven is the Era that "nothing" was found, not even Heaven, Earth, water, air, etc. This Period can be called as NULL or in Taoism - WU JI.

During the WU JI Era, even though nothing can be found, but some of the Pre-Heavenly Formed Deities were exist.

So when is Post Heaven Era?

Post Heaven Formed Era (Tai Ji Era) was formed only when the strong forces of the Extreme Yin and Extreme Yang crushed/collated together.

During the crushes/collation/combination, alot of other "new extreme pure energies" were being created, and all these are what we called as "Deities" now (including all the Star Lords, Deities of the Natural Sources).

So who are they?

Some are already mentioned above, here another one:

Jiu Tian Ying Yuan Lei Sheng Pu Hua Tian Zun (The Lord of Thunder), in folks beliefs, he is consider as the Boss of all Thunder Deities, etc.