One idea could be Naruto as a street artist in a modern city, using his ninja skills in unique ways to create amazing art. Another could be the characters attending a modern - day ninja academy that teaches both traditional ninja arts and modern technology for espionage. Maybe also a story where they form a modern - day ninja sports team, competing in extreme sports using their ninja abilities.
In a Naruto modern day fanfic, a cool plot could be that the Hidden Villages are now big corporations. Naruto could be a young entrepreneur trying to make a name for himself in the corporate world, but still using his ninja values. Sakura could be a top - notch scientist working on projects related to chakra manipulation in a modern laboratory. And there could be a mystery involving an ancient ninja artifact that has resurfaced in the modern world, with all the characters getting involved to protect it or use it for good.
A modern day 'Game of Thrones' fanfic could have the Targaryens as a reclusive but extremely wealthy family who own a large portion of the world's precious metals. They are being hunted by the other families who want to steal their wealth. The Dothraki could be a biker gang who form an alliance with Daenerys Targaryen to help her take back what is rightfully hers. It would be a mix of power struggles, loyalty, and betrayal, just like in the original series.
One idea could be that Naruto and Hinata work in the same modern - day office. Naruto is the overly enthusiastic new guy always trying to prove himself, while Hinata is the quiet but highly skilled co - worker. Their relationship could start with Hinata secretly admiring Naruto from afar at work, and Naruto gradually noticing her kindness and intelligence.
One idea could be Naruto as a street artist in a modern city. He uses his ninja skills to create amazing and fast art, like how he throws kunai, he throws paintbrushes to make unique patterns. Another is having Sasuke as a corporate spy, using his Sharingan to gather information secretly in high - tech business meetings.
A plot could be that Voldemort somehow gets access to the power of the tailed beasts from Naruto's world. Harry Potter and his friends have to travel to the ninja world to team up with Naruto to stop Voldemort. The Day of the Dead could be when Voldemort plans to use the power to resurrect his most powerful followers. Another idea is that a curse from the wizarding world starts affecting the ninja world, and during the Day of the Dead, Naruto discovers that the only way to break it is to use a combination of wizard magic and ninja chakra. They then seek the help of Harry Potter.
One idea could be exploring the modern - day Assassins' struggle against a powerful new Templar - backed tech company that's trying to control the world's information. They could use modern gadgets and hacking skills in their fight.
One idea could be to focus on Naruto's first day at the Ninja Academy. You could show his nervousness and excitement, and how he interacts with his classmates like Sasuke and Sakura for the very first time. Maybe include a small prank he tries to pull on Iruka-sensei on that day.
One idea could be a modern Naruto where the characters are in a high - school setting. Naruto could be the class clown who is secretly really smart and strong. Another could be a modern AU (alternate universe) where ninjas are like special agents in a big city, and Naruto is on a mission to stop a powerful criminal organization. And a third idea is a modern Naruto where they all live in a small town and Naruto has to deal with normal life problems while still having his ninja spirit.
An interesting plot idea for Naruto fanfic might be to focus on the life of a minor character. For instance, what if we told the story of a genin who never made it to be a chunin but still had a significant impact on the village in some other way? Or a story where all the ninja abilities are suddenly switched among the characters, and they have to adapt to these new powers while still facing their usual enemies. This could lead to some really fun and unexpected character interactions.
One idea could be that they are both part of an environmental activism group in a modern - day city. Katniss uses her skills from her past (like archery which could be translated to something like precision shooting in an archery range for fun) to draw attention to their cause, and Peeta uses his charm and baking skills to raise funds through bake sales for the group.
A really unique plot could be Naruto living the same day as the day Sasuke leaves the village. He could keep trying different things to stop Sasuke. Some days he might try to talk to Sasuke more about their friendship, other days he could try to prevent Orochimaru's influence from reaching Sasuke, which would be a very emotional and character - driven story.