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.
In some fan fictions, there might be a plot where Obito has a change of heart before a major battle with Kakashi. He could start to question his motives and the path he has chosen, leading to a very intense and emotional confrontation with Kakashi that is more about ideology than pure combat.
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.
One popular theme is redemption. Given Obito's past actions, many fanfictions explore his journey towards redemption and how Kakashi plays a role in it. For example, Kakashi might be the one to finally make Obito see the error of his ways.
Most popular ones often focus on their deep emotional bond. Since they have a long history together in the Naruto series, fanfics tend to explore the different phases of their relationship, like their childhood friendship and how it was affected by the events that followed.
They are popular because the relationship between Obito and Kakashi is complex. Their history as friends turned enemies creates a lot of drama. Fans are interested in exploring how Obito's actions impact Kakashi.
One great Kakashi x Obito fanfiction is 'The Bonds We Share'. It delves deep into their relationship, exploring how their past experiences shape their interactions in a post - war Konoha. It shows their growth and how they come to understand each other on a deeper level.
One idea could be a story where Female Kakashi and Obito are on a mission together in a mysterious land filled with ancient magic. They have to rely on each other's skills to survive and in the process, they start to see each other in a new light.
Kakashi could use his Sharingan to analyze Obito's moves and find a weakness in his defenses. Since he has the Sharingan, he might be able to predict Obito's attacks and counter them effectively, eventually finding an opportunity to break free.
One popular 'kakashi in love with obito fanfic' is 'The Unspoken Bond' which delves deep into their relationship. It shows how Kakashi's feelings for Obito develop over time through various shared memories and new experiences they face together.
You could also check out Naruto fanfiction groups on social media platforms like Facebook. There are often enthusiasts who share and discuss their favorite fanfictions. Just search for relevant groups, join them, and then look for fanfictions about Kakashi vs Obito.