Yes, there are likely some interesting ones. You can start by looking on fanfiction websites. Some might explore Clayface's character from a new perspective through a female character's eyes or might create unique storylines involving a female character and Clayface's powers.
One possibility could be that Naruto is drawn to boxing because of its physicality and the determination it requires. He might see it as a new way to test his strength and endurance outside of ninja battles. Maybe he starts training with a local boxing coach who sees his potential and helps him develop his skills.
You can try websites like Archive of Our Own (AO3). It has a large collection of fanfiction across various fandoms, and you can use the search function to look for 'female Clayface' fanfiction. Fanfiction.net is also a possibility, though the tagging system there might be a bit different.
You can try exploiting his weaknesses. Clayface often has issues with maintaining his form or being vulnerable to certain substances. Figuring out those weaknesses can give you an edge.
Perhaps Naruto's transformation into a Predator - like being changes his appearance. He might have some Predator - like physical features such as glowing eyes or enhanced strength. This could lead to his friends initially being scared or confused, but as they see him use these new powers for good, they come to accept him. In the story, he could also learn to control these powers, so they don't overtake his original ninja nature.
One possible scenario in a fanfiction where Naruto becomes Pein could be that Naruto is exposed to some dark jutsu that alters his mind. This jutsu might be related to the Rinnegan's power. As a result, he starts to adopt Pein's ideology of bringing pain to the world in order to create peace. His friends would be shocked and try to bring him back to his normal self.
Well, Naruto as a genie would be a really cool idea for a fanfiction. His character already has a strong sense of justice and a big heart. As a genie, he would be able to spread his positive influence even more widely. Imagine Naruto granting the wish of a poor village for food and resources. He could also use his genie powers to create illusions on a grand scale, fooling the enemies of the village. And his bottle or lamp (where he is trapped as a genie) could be hidden in some super - secret location in the Hidden Leaf.
One possible scenario could be that Naruto is transported to the Flash's universe and somehow gains the powers of Savitar. He might use Savitar's speed in his own unique way, like combining it with his shadow clones to create a sort of blitzkrieg attack. Maybe he would also struggle with the darker aspects of Savitar's power, as Naruto is typically a more positive - minded character.
His friends like Sasuke, Sakura, and Kakashi would surely support him. They have been through a lot together and know Naruto's good heart and leadership potential.
Clayface has different versions of origin stories in the DC Comics. One of the more well - known Clayfaces, Basil Karlo, was an actor. He became Clayface after using a special clay makeup for a role as a monster. When he learned that the role he wanted was being recast, he went mad and the chemicals in the makeup interacted with his skin, turning him into a malleable, clay - like being.