There's a fanfic titled 'Layle and Belle: Unlikely Allies'. In this one, they start off as strangers but gradually form a deep bond as they face various challenges together. It's really engaging as it delves into their individual personalities and how they complement each other.
You can start by looking on fanfic - specific websites like Archive of Our Own (AO3). It has a vast collection of fanfics from various fandoms, and you're likely to find some great Layle x Belle ones there.
One idea could be a fanfic that focuses on Belle's life in the castle before she truly falls in love with the Beast. It could explore her daily routines, her interactions with the enchanted objects, and how she gradually begins to see the good in the Beast. Another idea is to write about a modern - day retelling of the Belle x Beast story, where they meet in a completely different setting, like a big city. Maybe Belle is a bookworm who works in a library and the Beast is a wealthy but reclusive man. The third idea could be a fanfic that delves into the Beast's past, his life before the curse, and how Belle helps him come to terms with it.
One great 'belle and beast fluff fanfic' is 'A Day in the Castle'. It shows the cute interactions between Belle and Beast as they explore the castle together. Another is 'Morning Sunlight' which focuses on their tender moments during breakfast. There's also 'Starry Nights' where they stargaze and share sweet whispers.
One great 'Sweetie Belle and Button Mash fanfic' is 'Adventures in Ponyville'. It has a really engaging plot where they go on a quest together. Another is 'Friendship's New Chapter' which focuses on their friendship growing in unique ways.
One great MLP Rarity and Sweetie Belle fanfic is 'The Fashionable Adventure'. It's really engaging as it takes the two sisters on a journey through Equestria to find rare fabrics for Rarity's new collection. The way their relationship is depicted, with Sweetie Belle's eagerness and Rarity's more refined approach, makes it a fun read.
One popular Undertale fanfic could be 'Inverted Fate'. It has an interesting take on the Undertale universe, with well - developed characters and a captivating plot. Another might be 'Flowey's Time Machine'. It explores different timelines in a creative way.
One great 'x celeste fanfic' is 'Celeste's Ascent'. It beautifully explores the characters' deeper emotions. Another one could be 'Journey in Celeste', which has an interesting plot that takes the story in new directions. And 'Celeste's Hidden Tales' is also worth checking out as it reveals some unique aspects of the Celeste world.
One popular theme is the 'what if' scenario. For example, what if Gaston had a change of heart and actually tried to be a better person for Belle. Another theme could be exploring their relationship in an alternate universe where the circumstances of their initial meeting were different. It could also be about how they might overcome the differences in their personalities and social statuses within the fanfic world.
There are some interesting 'sweetie belle x spike fanfic' stories out there. Some focus on their unique friendship and how they support each other in different situations in the Equestria world. For example, in some fics, they team up to solve a mystery in Ponyville, which showcases their complementary skills and personalities.
One great 'belle beast fanfic' is 'A New Adventure for Belle and the Beast'. It takes place after the events of the original story and has them exploring new lands together. Another is 'Belle's Secret Garden' which focuses on Belle creating a beautiful garden at the castle. And there's also 'The Beast's Redemption' where the Beast has to face some old foes to fully prove his new self.