Yes, there might be some good ones. You can start by checking out popular fanfiction websites like Archive of Our Own. There could be various interpretations of Zell and Seifer getting married in the fanfictions, perhaps exploring different aspects of their personalities and how they come together in a relationship.
Well, without more context, it's difficult to say precisely. It could potentially be a story that focuses on the girl's personal growth within the context of the Zell library. For example, she could be learning new things, facing challenges like dealing with strict librarians or competing with other students for limited resources, and all these experiences form the side story.
As I don't know the specific 'zell and kosta werewolf novel', it's hard to say. But in general, werewolf novels often have themes of transformation, identity struggle, and the relationship between the human and the beast within. There might also be themes of loyalty, as werewolves often belong to packs.
There are indeed some. You could also check out some dedicated Final Fantasy fanfiction communities. These often have hidden gems where the relationship between Seifer and Zell is explored in interesting ways. It might take some time to search through, but it can be rewarding.
Well, Archive of Our Own is a top choice. It not only has a vast number of fanfictions but also has a very user - friendly interface for searching. Additionally, you could try searching on Tumblr. There are often fanfiction recs (recommendations) on Tumblr blogs dedicated to Final Fantasy. So, you might come across some Squall x Zell fanfiction there.