[@Apokalipse] Here's what I can see from the competition list

Poseidon - son *
Hera - son *
Hermes - daughter (no competition)
Artemis - son (no competition)
Demeter - son (no competition)
Hephaestus - daughter *


* These positions aren't closed yet, but you've still got a chance if the GM and Cogms think that your character would be better for the role.