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.
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.
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.
One interesting Madoka fanfic could be about an alternate universe where the characters have different magical powers. For example, Madoka might have the power to control time instead of making wishes. Another could focus on the relationships between the characters outside of the main plot, like Homura and Mami becoming closer friends. There are also fanfics that explore what would happen if a new character joined the group of magical girls.
Definitely. The art style is beautiful as always, and the plot twists keep you on the edge of your seat. It delves deeper into the magical girl concept and the consequences that come with it, which is fascinating.
The exploration of the dark side of power is a common theme. In 'dark Madoka fanfiction', the power that the magical girls possess is not just a means to fight witches but can also lead to their downfall. It shows how the allure of power can corrupt, similar to how in the original the wish - making aspect had hidden costs. Another theme is the isolation of the characters. As the world becomes darker, the characters often find themselves more alone, cut off from the support systems they had in the original story, which further emphasizes the despair in these fanfictions.