One idea could be to explore the backstories of the Rainbow Friends in more detail. For example, how did they come to be in that strange, spooky place? Another idea is to create a fanfic where a new character enters their world and has to form alliances or face challenges with the Rainbow Friends. Maybe a story about a character trying to escape the place while being chased by the Rainbow Friends can also be very exciting.
Some interesting Rainbow Friends fanfic ideas involve changing the environment they are in. For instance, instead of the usual spooky setting, put them in a more colorful and positive world and see how they react. You could also write a fanfic about a Rainbow Friend who is different from the others, maybe having a different color or a special ability that the others don't have. This unique Rainbow Friend could then be the center of the story, facing either acceptance or rejection from the other Rainbow Friends.
One interesting Rainbow Friends story could be about how the Rainbow Friends first met. Maybe they all came from different parts of a magical land and were brought together by some strange force. For example, Blue might have been found in a deep blue lake, Orange in a sunny orange grove, and Green in a lush green forest. Their journey together to understand their new situation and each other makes for an exciting story.
One idea could be exploring the backstories of the Rainbow Rocket members in more detail. For example, Giovanni's motives and how he assembled the team. Another could be a scenario where the protagonist has to infiltrate the Rainbow Rocket base. Maybe they have to find a way to stop a new, more powerful weapon the team is developing.
One idea could be exploring the backstories of the angel friends in more detail. For example, you could write about how they first became angels and what their lives were like before joining the angelic realm. Another idea is to create a new adventure for them, like a quest to save a part of the celestial world that is in danger. Maybe they have to face a new kind of enemy or overcome a powerful curse.
One idea could be exploring a different career path for one of the main characters. For example, what if Frances decided to pursue a career in a completely different field like medicine instead of writing? Another idea is to focus on the characters' relationships in a new setting, such as during a long - distance trip together. Maybe they could face new challenges and grow closer or have conflicts that are different from what we see in the original story.
One idea could be that Sonic accidentally enters Equestria where Rainbow Dash lives. They could then have a race to see who is faster in the new and unfamiliar terrain for Sonic. Rainbow Dash might be amazed by Sonic's speed and Sonic could be intrigued by Rainbow Dash's ability to fly while racing.
One plot idea could be IQ being assigned to a high - risk mission where she has to infiltrate an enemy stronghold alone. She uses her gadgets to outwit the opponents. Another could be a story about her training a new recruit, sharing her knowledge and experiences in Rainbow Six Siege.
One idea could be to explore a scenario where friends turn on each other due to a misunderstanding over a valuable heirloom. Maybe one friend was entrusted with it for safekeeping but lost it, and the others think it was stolen on purpose.
Maybe a fanfic about how Harry and Neville become best friends during a particularly difficult year at Hogwarts. They support each other through exams, Quidditch matches, and dealing with bullies like Draco Malfoy. Neville could help Harry with his Herbology studies, and Harry could teach Neville some useful Defense Against the Dark Arts spells.
One idea could be that the two best friends enter into this 'with benefits' relationship secretly, but then they start to develop real romantic feelings. For example, they might find themselves getting jealous when the other is with someone else. Another idea is that they decide to end the benefits part but struggle to go back to just being plain friends because the physical aspect has changed their dynamic so much.
One idea could be a story about a new recruit who has a unique skill set that surprises the veteran operators. For example, a recruit who can communicate with animals in some way and uses this to gain an edge in a mission. Another could be a fanfiction set in a post - apocalyptic version of the Rainbow Six universe, where the operators have to deal with new threats and scarce resources.