Oh if you're talking about little fairy and the first girl he married they both appear later in the story.
I don't really remb all the names when i read it was too long ago with lnmtl translation but you can check the list of names from this thread...
Warlock of magus world is very similar
Sovereign of Judgment
Aside from the old harem members, it would be demon queen, phoenix girl, his master, and unofficial members would be full sect as he keeps...
Not really sure I have put it on hold at around chapter 900 a while ago and stopped reading every cultivation novels. From what I remembered it...
@Braxx the demon girl in atg which likes the brother is actually the brother wife. The one which likes MC is demon queen. They are different girls.
Separate names with a comma.