One possible reason could be a misunderstanding during a battle. Maybe there was some sort of jutsu misfire or misinterpretation of an attack. For example, if Kiba was using a new and powerful technique that Naruto didn't recognize, Naruto might instinctively go all - out in self - defense, nearly killing Kiba.
Their relationship would likely become very strained. Kiba would probably be afraid of Naruto at first. He might avoid Naruto and have a hard time trusting him again. Naruto, on the other hand, would feel extremely guilty.
Naruto could try to talk her out of it. He is a firm believer in the power of friendship and words. So, he would likely use his words to try and break whatever spell or wrong idea is in Sakura's head that made her want to kill him.
One common theme is self - doubt. Naruto may doubt his worth as a ninja or a friend, feeling like he has let everyone down. Another theme is the burden of his past. All the hardships he has faced can pile up and seem overwhelming, pushing him towards self - destruction.
In a Naruto kills Kiba fanfiction, one way it could be developed is through a misunderstanding. Maybe Kiba is framed for a crime against the village that Naruto believes wholeheartedly. Naruto, in his overzealous sense of justice, might attack Kiba without fully understanding the situation. However, this goes against Naruto's character in the original series, so it would require a significant deviation from the canon.
I really like the 'Kiba Naruto Fanfic' titled 'Kiba's New Power'. In this story, Kiba discovers a new and unexpected power within himself, which changes his role in the team. It's exciting to see how he uses this power to help his friends and face the enemies. There's also 'Kiba in the Land of Shadows', which takes Kiba on a journey to a spooky and dangerous land. It's full of action and mystery as he tries to survive and complete his mission there. And don't forget about 'Kiba and Akamaru's Bond Strengthened', which explores the deepening relationship between Kiba and his faithful companion Akamaru.
One popular 'naruto almost kills himself' fanfiction might be 'The Brink of Despair'. In it, Naruto faces extreme emotional turmoil after a major loss and comes dangerously close to self - harm. However, his friends' memories and his unwavering will to protect the village eventually pull him back from the edge.
One possible reason could be a misunderstanding. Maybe Sasuke is framed for something really bad, and Naruto, in his anger and sense of justice, lashes out without knowing the truth. For example, if there's a false rumor that Sasuke has attacked the village again, Naruto might be quick to act.
It could be that Kiba has been involved in something that Naruto considers wrong. For example, if Kiba endangered the safety of the village or their friends, Naruto, being the protector - type, would take action against him. Or perhaps there was a misunderstanding between them. Kiba might have been framed for something, and Naruto, believing the false information, tries to 'destroy' Kiba in the heat of the moment.
Popular 'Naruto and Kiba' fanfics often focus on their unique bond. Since they are both ninjas in Konoha, their teamwork and how they complement each other's skills is a big draw. For example, Kiba's connection with his dog Akamaru and Naruto's ability to use shadow clones can create some amazing combat strategies in the stories.