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:
bound (be)
Fetish of being bound and at the mercy of another person. This is a type of bondage fetish. Can be seen
Trees
See also Dendrophilia. Arbophilia is a fetish involving an attraction to trees, which can be expressed in different ways
Zentai
Sexual arousal on very tight / body-hugging clothing that covers the entire body. A fetish that may involve tight spandex suits that
Stuffed toy animals
Plushophilia, commonly called plushophilia or plushies, is a form of kink and fetishism involving an attraction to teddy bears /
Salt
Saliromania is a form of fetishism in which one experiences sexual arousal from salty or salty-tasting things, especially sweat that accumulates
Hands
Hand fetishism is a form of sexual arousal in which the sight, feel and/or smell of hands become sexually stimulating. This may include
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
Fantasy about others
Sexual arousal from fantasizing about having sex with someone other than your current partner. The excitement of a forbidden
Pecattiphilia
Pecattiphilia is a form of fetish that has been known for thousands of years. It is a passion for sin
Scatophilia
See Coprophilia
Strangers
For some, it's the idea of having someone they don't know get turned on there
Corsets
A corset fetish is a form of sexual arousal that involves wearing and appreciating tight corsets with laces. The
Paying for sex / Robbed
Krematistophilia is a fetish for being forced to pay for sex or even being robbed. Crematistophilia, also known as
Touching fabrics or skin
Hyphephilia is defined as a form of sexual arousal by stimulating substances such as velvet or fur. Individuals who identify themselves
Eating people
Vorephilia, also known as vore, is a type of fetish that involves the fantasy or desire to be engulfed by someone
Sounds
People with this fetish can e.g. prefer to have sex while listening to loud music or talking rudely. The
Excrement
Koprofili, from the Greek kópros meaning excrement, is a sexual fetish that involves sex with or exploration of excrement. That
Urine
Sexual act involving urine. Also known as "Watersports", urophilia or "wet games". Urophilia is a sexual fetish in which persons
Ghosts
Spectrophilia is a type of fetish characterized by sexual attraction to ghosts or spirits. It is also known as
Food (smeared in)
Sploshing is a sexual turn on of being smeared into food. This may involve covering for a person