One possible fanfic could be about Spike finding a magical leaf that gives him the ability to communicate with plants. He then goes on an adventure in the Everfree Forest, using this new power to help the ponies. The leaves could be portrayed as having unique personalities and Spike has to learn how to interact with them.
There might be a fanfic where Spike discovers a hidden grove of leaves that are the key to an ancient pony magic. The leaves are slowly dying, and Spike, with the help of his friends, tries to save them. Along the way, he forms a special bond with the leaves, learning about their importance to the ecosystem of Equestria.
One sad MLP Spike fanfic could be about Spike feeling left out when the ponies are all busy with their own tasks and he feels unimportant. It might explore his loneliness and how he tries to find his place in Ponyville.
There could be a fanfic where Spike is depressed because he is constantly underestimated. In the story, ponies always think he's just a baby dragon and can't handle important tasks. So he starts to doubt himself and falls into a state of depression. He then has to find his own worth and prove to everyone that he's more capable than they think.
One popular fanfic could be 'Spike's New Form' where Spike's transformation into a pony leads to all kinds of adventures in Ponyville. He has to learn how to fit in with the other ponies and deal with his new abilities.
One popular MLP Rarity and Spike fanfic is 'A Tale of Two Friends'. It beautifully explores their unique friendship, with Rarity's elegance and Spike's loyalty. Another one could be 'Rarity's Little Helper', which shows Spike assisting Rarity in her fashion projects in a very endearing way. And there's also 'The Bond of Rarity and Spike', which delves deep into how they support each other through various challenges in Ponyville.
Another popular one is 'Past Sins'. This fanfic delves deep into the backstory of some of the main characters in MLP. It explores their pasts, their relationships, and how they became who they are in the show, with a lot of emotional depth.
Well, there's a fanfic titled 'Spike as the Superhero'. It delves into Spike's journey of becoming a superhero in the MLP world. He has to overcome his insecurities and learn how to use his unique dragon abilities for good. There are also some really interesting character interactions in it. For example, his relationship with Twilight Sparkle evolves as he takes on this new role.
One good MLP Sad Spike fanfic is 'The Lonely Dragon'. It delves into Spike's feelings of isolation when he feels left out by the ponies. Another could be 'Spike's Hidden Sorrows' which shows his internal struggles in a very poignant way. There's also 'When Spike Felt Blue' that explores his sadder moments through a series of events that make him question his place in Ponyville.
There could be a fanfic where the Little Mermaid characters are transformed into ponies. Ariel as a pony could have a mane that resembles her red hair and a tail that has a fin - like pattern. This would create an interesting crossover of the two universes.
There are several MLP Saw fanfics out there. Some focus on the entire pony community being thrust into a Saw - inspired nightmare. In these fanfics, the writers often have to balance the light - hearted nature of MLP with the much darker and grittier feel of Saw. They do this by creating unique settings and scenarios. For example, they might have the ponies in a maze - like structure where they have to solve puzzles to save their friends, similar to the traps in Saw. But not all of them are well - written, so it takes some searching to find the really good ones.
One popular MLP haircut fanfic could be 'The Stylish Pony Makeover'. It might involve ponies getting unique haircuts in the magical land of Equestria, perhaps for a special event like the Grand Galloping Gala. The story could detail how each pony's personality is reflected in their new haircut.