In Madoka x Homura fanfiction, the power dynamics between them can be an interesting aspect. Madoka, as a very powerful magical girl, and Homura, with her time - looping abilities, have a unique relationship. Fanfiction could play with how they use their powers in relation to each other. Maybe in a fan - created scenario, they combine their powers to save a new threat that wasn't in the original series.
One popular trope is the 'time - loop fix - it' where Homura uses her time - looping abilities to try and create a perfect situation for Madoka. This often involves Homura going through multiple loops, each time learning more about Madoka and how to protect her better.
Another theme is time - related. Since Homura has the ability to manipulate time in the show, many fanfictions play with this concept in relation to her relationship with Madoka. For example, stories might involve Homura going back in time to save Madoka in different ways or dealing with the consequences of her time - traveling on their relationship.
You can try fanfiction websites like Archive of Our Own (AO3). Just search for 'Homura x Madoka' in the Madoka Magica section. There are usually a lot of great works there, with different storylines and writing styles.
The theme of redemption can also be found in some Homura x Kyubey fanfiction. Even though Kyubey has caused a lot of harm, some stories might explore the possibility of his redemption. Maybe through Homura's influence, Kyubey starts to see the error of his ways. Or perhaps Homura realizes that Kyubey is just a product of his species' nature and tries to find a way to change that nature, which could be seen as a form of redemption for both of them in a way.
I think there are several, but the exact number might change as new ones could be released. You might want to check reliable manga databases or official sources for the most accurate count.
One interesting Homura x Kyubey fanfiction could be where Homura tries to understand Kyubey's true motives in a more in - depth way. Maybe she discovers some secrets about the Incubators that no one else knew before. For example, she might find out that Kyubey has a different side to his cold - hearted, utilitarian nature.
The 'puella magi madoka magica wraith arc light novel' is important as it likely expands on the story. It might introduce new plotlines related to the wraiths, which are a key part of the Puella Magi Madoka Magica universe. It could also provide more in - depth character development for the magical girls.