Which anime fulfills your fetish?
I like saliva.
My fetish is my waifu forcing me to snowball with her.
Have you ever seen images of your waifu doing that?
With semen in her mouth, but no snowballing images.
I've yet to see a great Yandere in anime, so none fulfill it.
Some attempt to, though.
Manga and VNs are the better medium for yandere.