Choosing my next IEM

My current IEMs are the DUNU titan s2 and the KZ ZEX pro although I feel the titan S2 are overall the better IEM i still at times prefer the ZEX pro because of the extra treble. I am considering buying the Ziigaat Odyssey 2, Ziigaat arete 2, or the Aful performer 5+2. I am looking for whichever IEM has the best female vocal/ overall treble presentation.