Please correct me if I get anything wrong, and feel free to add on in the comments :)
1. Agender: Doesn't identify with any specific gender; may have no gender at all
2. Androgyne: Gender may be masculine AND feminine, or somewhere between the two
3. Bigender: Identify with two genders (i.e., male & female)
4. Genderfluid/Genderqueer: Gender identity (& expression) shifts between, or outside, of male & female (or their assigned gender)
5. Nonbinary: Experiences gender outside of male/female; may be gender non-conforming
6. Omnigender: Experiences & possesses "all genders"
7. Polygender/Pangender: Experiences & displays parts of multiple genders
https://www.healthline.com/health/different-genders#a-d has a list of OVER 64 different terms for gender identities :)