Maybe in the fanfiction, there could be a parallel universe where Kid and Kat have different personalities. They are forced to coop to save both their worlds from destruction. Kat could be more heroic than usual and Kid could be more hesitant, creating an interesting dynamic.
To make your fanfiction stand out, research different writing styles and try to incorporate elements from those that you like. Use vivid descriptions to bring the world of Kid and Kat to life. For instance, when describing a fight scene between them and an enemy, use strong action verbs and detailed imagery. Also, don't be afraid to explore deeper themes like friendship, loyalty, and growing up within the context of the 'kid vs kat coop x kat' universe.
One idea for a Power Rangers SPD Kat fanfiction could be to explore her backstory before joining SPD. Maybe she had a difficult life on her home planet and her journey to becoming a ranger was a way to find purpose and family.
A great fanfic idea could be a prequel about how Kat and Raven first met. It could show their initial impressions of each other, perhaps with some misunderstandings due to their different outlooks. For instance, Raven might see Kat as too naive at first, while Kat could be a bit intimidated by Raven's tough exterior.
A fanfic could explore the relationship between Kat and Raven in a more personal way. Maybe it's a story set during a time of peace in their world. Kat decides to show Raven around her favorite places in the city. As they explore, they share stories about their pasts, and Raven begins to open up more about her own experiences, deepening their friendship.
As of now, Magic Triumphs is considered the last in the series. However, authors sometimes change their minds or come up with new related works in the future.
You can try searching on specialized comic book websites or online marketplaces. Sometimes, local comic book stores might have what you're looking for.
Casper and Kat might be fond of romantic fanfiction. If there are certain characters in a story they ship together, they would love reading fanfictions that focus on the development of that relationship, with all the sweet and sometimes angsty moments.
Kat could be part of a fanfiction where she teams up with Rangers from other series. This crossover fanfiction would allow her to interact with different ranger cultures and powers, leading to exciting adventures and new friendships.