Another theme is the redemption arc through love. Discord might be seen as a character who changes for the better because of his love for Celestia. This can involve him learning to be less chaotic and more understanding, all in the name of love.
One interesting fanfic could be about Celestia and Discord having to team up to save Equestria from a new, powerful dark force. They start off not trusting each other but as the story progresses, they learn to work together and even become friends.
One popular theme is mentorship. Since Celestia was Twilight's teacher, many fanfictions explore their relationship in more depth, like how Twilight continues to learn from Celestia in different ways.
Well, the plot could involve Celestia and Discord having to team up to save Equestria from a new, unknown threat. Maybe a powerful dark magic that neither of them can handle alone.
Another storyline could involve Celestia and Discord having to team up against a common enemy. Maybe an ancient evil that threatens Equestria. At first, they might struggle to work together due to their very different natures. Celestia is all about order and harmony, while Discord is chaos personified. But as they face challenges, they learn to appreciate each other's strengths and develop a unique friendship.
Create an interesting plot. It could be a conflict between order (represented by Celestia) and chaos (represented by Discord). Or it could be a story where they have to cooperate against a common enemy. Make sure the plot has a clear beginning, middle, and end. For example, start with Discord causing some minor chaos in Canterlot, Celestia tries to stop him in her usual way but fails. Then a bigger threat emerges that forces them to work together. In the end, they either defeat the threat or find a new balance between order and chaos.
You can start by looking on fanfiction websites like Fimfiction.net or Archive of Our Own (AO3). These platforms often have a wide variety of fan - created stories. Just use the search function and type in 'MLP Discord and Celestia' to see what's available.
One popular Discord and Celestia love fanfiction is 'The Celestial Bond'. It beautifully weaves a story of their relationship. Another could be 'Love Beyond the Realms' which delves into how their love overcomes different challenges. And 'A Celestial Romance' is also quite well - liked for its portrayal of their affectionate interactions.
One common theme is the idea of redemption. Discord has a past of causing chaos, and in many fanfics, his relationship with Celestia is part of his journey towards redemption. For example, Celestia may offer him a chance to prove himself and do good for Equestria.
One common theme is their power dynamics. Since both are powerful characters in their own right, fanfics might explore how they interact when their powers clash or complement each other. Another theme could be their different personalities. Discord is chaotic while Celestia is more serene, so stories could focus on how they handle their differences. Also, friendship is a big theme. How they become friends or maintain their friendship despite their differences can be an interesting story.
One popular theme is mentorship. Celestia was Twilight's mentor, so fanfics often explore their relationship in more depth, like how Celestia's teachings influenced Twilight. Another is adventure, where they might go on quests together.