Rupgta/Tall Papa:
Sep: Lorkhan. A "helper" of Tall Papa. May also be Alduin, but I'm not sure if I agree with that.
Akel: Padomay/Sithis. Technically a force. Not a god.
Satak: Anu. A force, not a god.
The Hum: Anuiel. A force, not a god.
Tava: Spirit of the Air, so she's Kyne.
Morwha: Mara.
Satakel: A mixture of Anu and Padomay. Also maybe the God of Time, who seems to lack a sentient equivalent.
Zeht: Zenithar.
Others mentioned in this topic by others:
Malooc: Malacath.
Tu'whacca: Arkay.
Sources
http://www.imperial-library.info/content/morrowind-monomyth-yokudan-satakal-worldskin
http://www.imperial-library.info/content/fight-one-eating-birth-dagon
http://www.imperial-library.info/content/morrowind-varieties-faith-empire