In some fanfictions, Konan might use her origami techniques in a highly lethal way. Maybe she creates a large number of explosive paper bombs and traps Obito in a confined space, detonating them all at once to overpower his defenses and kill him.
It might be for the greater good. If Obito's actions in the fanfic are leading to destruction on a large scale, Konan, being a protector of sorts, decides to take him out to save the world or at least her part of it.
Minato might also be a prominent character. As their teacher, he can influence the way Obito and Kakashi interact. In some fan fictions, he could be the one to help them resolve their differences or provide some crucial information about their past that changes their current situation.
One key moment could be when Naruto jumps in front of a fatal attack aimed at Konan. His quick reflexes are crucial here. He takes the hit or deflects it using his own skills, like his shadow clone technique to create a distraction and then save Konan.
In this fanfiction, Naruto may save Konan through his ability to understand and connect with people. Maybe Konan is in a psychological crisis, feeling lost or conflicted. Naruto, with his kind heart and his own experiences of overcoming hardships, talks to Konan. He gives her the strength and hope she needs to get out of her difficult situation. His words are like a life - saving jutsu, bringing Konan back from the brink and saving her in a very different, yet equally important way.
Obito's influence would likely make Naruto more aware of the darker side of the ninja world. Naruto is usually very optimistic, but with Obito's guidance, he would see the hardships and betrayals that can happen. For example, Naruto might become more cautious in his trust of others.
Naruto would probably be more popular. He has that outgoing and friendly personality that draws people in. He'd be the kind of guy who is always involved in school events and is friends with everyone from the jocks to the nerds.
Some fanfictions might explore the emotional aspect of their fight. For example, how their past friendship affects the battle. Maybe Kakashi hesitates to strike a fatal blow because of their shared history.
In a fanfiction, Naruto could meet Tayuya and Konan in a unique setting, like an ancient, mysterious land. Naruto might be intrigued by Tayuya's combat skills and Konan's paper - like abilities. They could end up sharing their stories and goals. Tayuya could learn about Naruto's dream of becoming Hokage and be inspired in some way. Konan might see Naruto as a potential force for change in the ninja world and decide to support him in his future endeavors.
A good one is 'Naruto and Konan: Allies in the Shadows'. Here, they start as unlikely allies but gradually grow to trust and rely on each other. The fanfiction has some great fight scenes and also shows the development of their bond outside of combat situations.