From 'Avatar: The Last Airbender', Aang would be a good choice. His airbending skills and his connection to the spirit world could have some fascinating interactions with the magic of Fairy World. He could use his airbending to fly around Fairy World in a different way than the fairies do, and his wisdom from different cultures in the Avatar world could offer new perspectives on the often - chaotic world of The Fairly OddParents.
Naruto would probably be really curious about Cosmo and Wanda. He'd be constantly asking them questions about their magic and how it works. Timmy, on the other hand, would be excited to see Naruto's ninja skills. He might ask Naruto to teach him some cool moves. Sakura would likely be a bit skeptical of the whole fairy thing at first. She'd be the voice of reason, trying to figure out if there's a scientific explanation for the magic. And Jorgen von Strangle might be really annoyed with the chaos that Naruto and his friends bring to the fairy world.
Timmy Turner is definitely one of the most popular. He's the main character and all the adventures usually revolve around him and his wishes. Cosmo and Wanda are also very popular as they are the ones who grant the wishes. Their bumbling and comical nature make them fan favorites. And Vicky, the mean babysitter, is also well - known in fanfiction as she often provides the conflict in the stories.
The exploration of new powers and abilities is common too. In a crossover with 'Avatar: The Last Airbender', the fairies' magic could be compared and combined with bending. This allows for new and exciting scenarios where the characters discover how their powers can either complement or conflict with each other.
In a crossover with 'Avatar: The Last Airbender', Aang would be an amazing character to include. His airbending skills and his connection to the spirit world could tie in well with the magical elements of 'Fairly Odd Parents'. He could teach Timmy some lessons about responsibility and using power for good, while Timmy could introduce Aang to the concept of fairy - granted wishes. Katara, Sokka, and Toph could also bring their own unique skills and personalities to the story.
One idea could be a crossover with 'The Powerpuff Girls'. The Fairly OddParents' magic could interact with the superpowers of the Powerpuff Girls in really fun ways. For example, Timmy could wish for super strength like Buttercup, but with a magical twist. Maybe his strength would be based on how many good deeds he's done recently.
Another idea is that there's a mix - up with the magical powers in both worlds. The chakra in Naruto's world and the magic in Fairly OddParents world get intertwined. This causes chaos as ninjas start having magical abilities and the characters in Fairly OddParents start showing ninja - like traits. Naruto and his friends would have to figure out how to separate the two powers again, while also dealing with the mischief that Cosmo and Wanda accidentally create in the process.
The most interesting part is the clash of different power systems. Naruto has his chakra - based ninja skills and the Fairly Oddparents have their magic. When these two collide in a crossover, it creates unique and unexpected scenarios. For example, Naruto might use his shadow clone jutsu while Cosmo and Wanda use their magic to multiply the clones further. It's a wild combination.
One popular 'naruto fairly oddparents crossover fanfiction' is 'Naruto's Fairy Godparents'. In this story, Naruto somehow gets the help of Cosmo and Wanda. It's interesting to see how Naruto's ninja world and the magical world of the Fairly Oddparents blend. They help Naruto with his training in a very unique way, adding a touch of magic to his already powerful ninja skills.
John McClane from Die Hard would be a great addition. He has a similar tough - guy attitude and is good at handling high - pressure situations in urban environments. Another good character could be Ellen Ripley from Alien. Her experience with alien threats would contrast well with Rambo's combat skills. Also, Indiana Jones would be a perfect fit. His knowledge of archaeology and adventure - seeking nature combined with Rambo's combat expertise could lead to some exciting storylines.
Storm from the X - Men would be a great addition. She has control over the weather, which could create some really interesting scenarios when combined with Wolverine's combat skills. For example, she could create a lightning storm while Wolverine battles enemies in the rain, using the flashes of lightning to his advantage.