Sasuke could be really interesting in this type of fanfiction. Imagine him adapting his Sharingan abilities to work with ice - style jutsu, creating some really cool and powerful combinations.
I think Hinata could be a fascinating character in 'ice style naruto fanfiction'. She already has her Byakugan, and if she were to incorporate ice - style techniques, it could enhance her combat abilities. Maybe she could use her ice powers to create barriers or freezing attacks while using her Byakugan to anticipate her opponents' moves.
Kakashi would also be great. He's known for his wide range of jutsu. In an 'ice style naruto fanfiction', he could teach his students new ice - based strategies. His own ice - style jutsu could be a combination of his Sharingan - inspired tactics and the cold power, making him a formidable force and an interesting character to explore in this new setting.
In some fanfictions, there's an original character who is a master of both ice and lightning techniques. This character has a mysterious past and often clashes with the Ice Dragon Slayer at first but later becomes an ally. They bring a new dynamic to the story as they can combine their powers in unexpected ways. Another interesting character is a healer who has a special connection to the Ice Dragon Slayer. They can heal the slayer's wounds in a way that also enhances their ice powers, which is really cool. There's also a character who is a rogue ninja that has been studying the Ice Dragon Slayer from afar and has some devious plans related to their powers.
Often, an original character created specifically for the fanfiction can be really interesting. For example, a wandering swordsman who has mastered the two - sword style and has a mysterious past. He might have connections to an old war or a lost ninja art, and his interactions with the main Naruto characters add new dynamics to the story.
Manny from the Ice Age could be very interesting. In a crossover, he would be the big, strong and somewhat skeptical character towards the Naruto bunch. He has his own code of honor in protecting his herd, and seeing how he interacts with the ninja, especially with their strange powers like Naruto's Rasengan, would be really cool. He might start off not trusting them but eventually come to respect them.
Often, original characters created specifically for the fanfiction can be really interesting. For example, an illusionist who can create entire alternate realities within their illusions. They can be very mysterious and add a new layer of intrigue to the Naruto world.
Sasuke could also be a really engaging character. Maybe in the fanfiction, he has a different path or a new motivation that makes his story more captivating. For example, he could be involved in some sort of mystery related to his clan that wasn't explored in the original. And his interactions with other characters would be different too, adding more depth to his character.
Definitely Naruto's son, Boruto. He has his own set of challenges and goals that make him really interesting. He wants to be his own person rather than just living in Naruto's shadow. Then there's Sarada, Sasuke's daughter. She's strong - willed and determined to prove herself as a great ninja. And Mitsuki, he's an enigma with his unique abilities and mysterious origin.
Shino is often an interesting secondary character in Naruto fanfiction. His ability to control bugs gives a unique aspect to stories. Writers can explore his more introverted nature and how it affects his relationships with other characters. Another one is Rock Lee. His determination and unique fighting style can be the focus. In fanfiction, his story can be expanded on, like his training methods and how he overcomes his limitations.
I think Jon Snow is one of the most interesting. He's a bastard, yet he has a strong sense of honor. His journey from the Wall to becoming a leader is full of twists and turns. Also, Cersei Lannister is interesting in a different way. She's a complex character, full of ambition and pride, and her actions have a huge impact on the story. Another interesting character is Bran Stark. His discovery of his powers and his role in the bigger picture of the story make him stand out.
Naruto himself is often a central character in Naruto ice fanfiction. His adventurous spirit and determination make him a great fit for stories involving ice powers or ice - related challenges. Sasuke is also popular as he can be paired with Naruto in various ice - themed adventures. His cool and brooding nature can be contrasted with Naruto's warmth in the icy settings.
Sasuke could be really interesting in this style of fanfic. His natural inclination towards the darker side in the original Naruto could be further explored. He might take on even more extreme actions and develop new powers related to the dark slayer concept.