One interesting 'naruto all alone fanfiction' story could be about Naruto finding himself alone in a desolate forest, having to rely on his own skills and inner strength to survive. He might encounter strange creatures and have to figure out how to deal with them without his usual comrades.
One could be 'Naruto's Solitary Journey'. In this fic, Naruto is left alone after a major battle where most of his friends are thought to be dead. He embarks on a journey of self - discovery and revenge. Another might be 'Alone in the Shadows', where Naruto is ostracized by the village again and has to face new threats all by himself.
A possible plotline could also be Naruto's struggle with loneliness and how he overcomes it. He might start writing letters to his friends (even if he doesn't send them) as a way to express his feelings, and through this, he gains a better understanding of himself.
One interesting 'naruto all doujutsu fanfiction' story could be about a character who unexpectedly awakens a new doujutsu that combines the powers of multiple known doujutsu. This new power throws the Naruto world into chaos as everyone tries to understand and either control or eliminate the character.
One interesting aspect could be Harry's self - discovery journey. In many 'harry is alone fanfiction' stories, he has to rely solely on himself, which forces him to dig deep into his own capabilities. For example, he might learn new spells on his own, without the help of his friends or teachers. This makes for a very different Harry than the one in the original series.
One interesting 'ash alone fanfiction' could be about Ash going on a solo adventure in an uncharted forest. He discovers new Pokémon species and has to rely solely on his own skills and the bond with his Pikachu to survive.
In 'ash is alone fanfiction', perhaps there are stories where Ash discovers new powers within himself during his time alone. He might have to rely on his wits and these newfound abilities to survive in a strange and dangerous situation, such as being stranded on an uncharted island filled with unknown Pokémon.
One interesting 'home alone fanfiction' story could be about Kevin McCallister as an adult, facing new challenges in his home that remind him of his childhood adventures. Maybe he has to protect his own kids from a new set of bumbling burglars.
One interesting story could be about a female clan coming together to protect a hidden village from a new threat. They use their unique skills, like a clan that has the ability to control nature in different ways compared to the regular Naruto abilities. Maybe they can make plants grow instantly to create barriers or use water in a more refined way for defense and offense.
One interesting story could be about Harry facing challenges alone in the Forbidden Forest. Maybe he discovers a hidden magical creature that no one else knew about and has to figure out how to deal with it on his own.
There might be a fanfiction where Kotaro goes on a small adventure in the park near his house. He discovers a hidden spot that he decides to make his own little secret place. He could bring some of his things there and decorate it in his own unique way, like using stones and twigs to create a small boundary.