Polysexual
Attraction to many genders, but not all of them.
Polysexual means being drawn to several genders while not being drawn to every one. The set is plural and specific — someone might be attracted to women and non-binary people but not to men.
This is where it differs from pansexual and omnisexual, which both describe attraction across all genders. Polysexual keeps the boundary.
It also has nothing to do with polyamory, despite the shared prefix. Polysexual is about which genders someone is drawn to; polyamory is about how many people they want relationships with at once.