According to various websites,there are a total of 46 sexualities.Some of them are listed below:

1) Allosexual - A word or category describing those who experience sexual attraction.
2) Asexual - Identity or orientation including individuals who don't experience sexual attraction to others of any gender.
3) Aromantic - A romantic orientation that describes people who experience little to no romantic attraction, regardless of sex or gender
4) Autosexual - A person who is sexually attracted to themselves. Someone's desire to engage in masturbation doesn't determine whether they are Autosexual.
5) Autoromatic - A romantic orientation that describes a person who is romantically attracted to themselves.
6) Abrosexual - Fluid sexual orientation, where you preferences can change occasionally ( Edited this part, hope the definition is now correct)
7) Androsexual - Sexual or romantic attraction to men, males or masculinity. Regardless of biology, anatomy of sex assigned at birth.

Source: www.healthline.com

[I appreciate any feedback about the authenticity of my source site]

NOTE:It is very important to note that human emotions and sexuality lies in a spectrum , so it is not supposed to be have a textbook definition. You may relate to more than one orientation, or have more than one preference . But you don't have to attach a 'label' or name to said preference. You can just say I like so and so things, or I find so and so people attractive. If you use labels that's fine but do not complicate your thoughts by trying to box it with a label. It's always ok to describe.