No because everyone likes different things. Fanfiction is fiction written about someone else's books, movies, TV shows, or real life celebrities -- there's no giant list showing you everything that's ever been done. Pick something you like and start writing.
fanfiction.net
No, a fan fiction would be if you were to write about the characters themselves.
Try Wattpad
Kayka is a user of the FanFiction website that writes various fan fictions. She writes fan fiction for series such as Naruto, Inuyasha, Big Bang Theory, and Sherlock.
Fan fiction is a way to expand on a story you like, using characters that have already been established by another creator. You can make up what happens after the end page of a novel, or after the credits start rolling at the end of a movie. You can write whatever you want, and other people have the chance to read it if you post it on a fan fiction website.
A genre called fan fiction.
You find another website or go write some more fanfiction while you wait!
Yes, there are several websites dedicated to fan fiction for the Warriors series, such as FanFiction.net and Archive of Our Own. These sites allow fans to write and share their own stories set in the Warriors universe.
Modern fan fiction has developed by significant amount of terminology. Harry potter is one of the famous fan fiction franchise. Other fan fiction franchises are Star wars, pirates of the Carrabean and so on.
Manny Pacquiao fan fiction can typically be found on fan fiction websites such as Archive of Our Own or FanFiction.net. Alternatively, some fan fiction communities and forums may also have stories written by fans about Manny Pacquiao.
Since it's fan-fiction you are taling about, you can write one.
It doesn't matter if it is good or not (or if you think it is good); it is considered fan-fiction, meaning you can publish it (there are many sites on the net for that), but may not make money from it. For details google for 'fan-fiction'.