List all the gods first then the goddesses second.

I assume that you mean greek gods and in that I suppose you mean those who were olympians. That is the 12 ruling gods and goddesses. You would first start with Zeus, Poseidon, Apollo, Hermes, Hephaestus, Dionysus, Hera, Demeter, Athena, Artemis, Aphrodite. Hera used to be an Olympian but ceded her seat to Dionysus, and Hades wasn't really considered a major olympian. When you go down into the more minor gods you get heracles,persephone,eros,pan, hebe and asclepius. After that you get into even more minor residents of olympus like amphitrite, iris, leto and morpheus. There's more than just them but the list has probably 30 more that I can't recall off the top of my head.