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:
Sounds
People with this fetish can e.g. prefer to have sex while listening to loud music or talking rudely. The
Food (smeared in)
Sploshing is a sexual turn on of being smeared into food. This may involve covering for a person
Eyes
Eye contact is an effective way to create strong sexual energy between partners. It can be anything from a subtle
Paying for sex / Robbed
Krematistophilia is a fetish for being forced to pay for sex or even being robbed. Crematistophilia, also known as
Hair
Being sexually excited by hair, long hair. Especially on the head. Trichophilia, commonly known as hair fetishism, is a form of
Trees
See also Dendrophilia. Arbophilia is a fetish involving an attraction to trees, which can be expressed in different ways
Breath Play
Being turned on by this is known as hypoxyphilia (typically done alone) or Asphyxophilia when done with a partner.
Criminals (attraction to)
A sexual attraction to someone known to have "committed an outrage or crime, such as rape, murder, or armed robbery."
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
Pecattiphilia
Pecattiphilia is a form of fetish that has been known for thousands of years. It is a passion for sin
Corsets
A corset fetish is a form of sexual arousal that involves wearing and appreciating tight corsets with laces. The
Teddy bears
Ursusagalmatophilia, also known as plushophilia, is a type of fetish that involves an attraction to teddy bears. It is not commonly discussed,
bound (be)
Fetish of being bound and at the mercy of another person. This is a type of bondage fetish. Can be seen
dick cheese
A person who enjoys oral sex with a man whose penis has a lot of smegma, or "neck cheese" (the cheesy goo that collects
Steal / Robbery
Kleptolagnia, or theft as an erotic stimulus, is a form of paraphilia in which individuals experience sexual arousal by stealing.
Wet and Dirty (WAM)
WAM stands for "Wet and Messy" and is the term usually used. Many WAM fetishists love to get wet and
Contamination
Salirophilia is a sexual fetish in which a person derives pleasure from soiling or altering the appearance of their partner with
Statues
… or mannequin dolls. Agalmatophilia is a term used to describe a person's sexual attraction to humanoid statues
Excrement
Koprofili, from the Greek kópros meaning excrement, is a sexual fetish that involves sex with or exploration of excrement. That
Zentai
Sexual arousal on very tight / body-hugging clothing that covers the entire body. A fetish that may involve tight spandex suits that