One idea could be to have the Naruto characters end up in the Power Rangers Ninja Steel universe. They could learn about the Ninja Steel powers and use their own ninja skills in combination. For example, Naruto's shadow clone jutsu could be used in a creative way during battles against the villains in the Power Rangers' world.
Good writing quality, of course. This includes proper grammar, vivid descriptions, and a smooth flow of the story. A fanfiction that can make you feel like you're right there with the Power Rangers in their battles and adventures is a great one. For instance, when the writer describes the action scenes in detail, it makes the whole reading experience more exciting.
You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own. These platforms have a large collection of Power Rangers Ninja Steel fanfictions. Just use the search bar and type in 'Power Rangers Ninja Steel' and you'll get a bunch of results.
One idea could be to have the Ninja Steel Rangers cross over with the original Mighty Morphin Power Rangers. They could team up to fight a common enemy that is too powerful for either team alone. Maybe Lord Zedd and Galvanax form an alliance, forcing the two ranger teams to combine their powers and zords in new and creative ways.
A plot twist could be that the main villain in the fanfiction is actually a character from one universe who has been corrupted by the power of the other. For example, a Naruto character who becomes evil after getting a hold of some Ninja Steel power. Or vice versa, a Power Ranger who is influenced by the dark chakra in the Naruto world.
To create a compelling OC (Original Character) for Power Rangers Ninja Steel fanfiction, start with a unique backstory. Maybe your character is from a different dimension or has a special power passed down through generations. For example, they could be a descendant of an ancient ninja clan that has a hidden technique. Then, give them distinct physical features like a unique hair color or a special mark on their body. Also, think about their personality. Are they brave but also a bit clumsy? Or perhaps they are shy but extremely intelligent when it comes to ninja techniques. This will make your OC stand out in the fanfiction world.
First, you need to establish a strong villain. For example, a new villain that has the power to disrupt both the Ninja Steel Rangers' world and the world they are crossing over into. Then, create a conflict that forces the rangers to seek help from the other group. Keep the action scenes exciting and use the unique abilities of each ranger and the crossover characters.
One plot idea could be that your OC discovers a new type of Ninja Steel with powers that are both a blessing and a curse. The Rangers initially don't trust this new power but as they face a powerful enemy, they realize they need it. Another idea is that your OC is from a parallel Ninja Steel world where things are different. They come to the main universe and have to adapt while also teaching the Rangers new techniques. A third plot could be that the OC's family has a connection to the origin of the Ninja Steel, and they must unlock the secrets to save the world from a new threat.