I’m of the opinion that the Titans and the Eternal Ones can be compared, but mostly in how they reflect on each other in the cosmic scheme of things (going by that wonderful illustration of magic in the WoW universe from Chronicles).
EDIT: Made a separate thread for some more of my thoughts on that.
https://us.forums.blizzard.com/en/wow/t/who-were-the-first-ones-my-theory/766548?u=vozul-wyrmrest-accord