It is impossible to say exactly which and how many fetishes there are. Because there are millions.
There is no definitive answer to this question as it largely depends on what people are interested in.
Roughly speaking, we humans can "fetish" almost anything. From body parts like feet and hair to objects and materials like denim, leather, latex and even plastic! The possibilities are almost endless. So if you can think of it, it probably exists.
Although there can be some social stigma associated with fetishes, they can also be incredibly fun and enjoyable.
On this website you can find my large online list / encyclopedia of all kinds of fetishes: FETISH LEXICON
Here is a selection:
Cold
Psychophilia (or more correctly “psychrophilia”) refers to a sexual fetish in which the individual is sexually aroused by being cold or
Clothed / No-nude
Being sexually excited by a partner wearing clothes rather than being naked. People who like this
Scatophilia
See Coprophilia
Suffocation (by self)
Sexual arousal and arousal achieved by reducing the oxygen supply to the brain. It is a paraphilia that usually involves one person
Ghosts
Spectrophilia is a type of fetish characterized by sexual attraction to ghosts or spirits. It is also known as
Salt
Saliromania is a form of fetishism in which one experiences sexual arousal from salty or salty-tasting things, especially sweat that accumulates
Corsets
A corset fetish is a form of sexual arousal that involves wearing and appreciating tight corsets with laces. The
Eyeballs
There are a number of different reasons why someone might feel arousal from licking eyeballs. Because some can
Steal / Robbery
Kleptolagnia, or theft as an erotic stimulus, is a form of paraphilia in which individuals experience sexual arousal by stealing.
Trees
Being sexually excited by trees or e.g. bark from trees. So also Arbofili Dendrophilia is a sexual fetish that
Zentai
Sexual arousal on very tight / body-hugging clothing that covers the entire body. A fetish that may involve tight spandex suits that
Eyes
Eye contact is an effective way to create strong sexual energy between partners. It can be anything from a subtle
Choking (with partner)
Strangulation is the act of choking someone until they pass out. It is incredibly dangerous and can lead to brain damage.
Darkness
It is often also called noctophilia. Involves sexual arousal when exposed or immersed in darkness or at night.
Sounds
People with this fetish can e.g. prefer to have sex while listening to loud music or talking rudely. The
Scratches
Can be incorporated into rough / rough sex. Can be used as punishment or reward. Can be combined with other types of activities
Breath Play
Being turned on by this is known as hypoxyphilia (typically done alone) or Asphyxophilia when done with a partner.
Read / hear erotic words
Sexual arousal by reading or hearing erotic literature or erotically charged words and sounds. Narratophilia is a sexual fetish
Trees
See also Dendrophilia. Arbophilia is a fetish involving an attraction to trees, which can be expressed in different ways
Wet and Dirty (WAM)
WAM stands for "Wet and Messy" and is the term usually used. Many WAM fetishists love to get wet and