There's 'Kakashi's Guardian Instincts'. It focuses on how Kakashi's past experiences, like losing his comrades, fuel his need to keep Naruto safe. He trains Naruto intensively, not just in combat skills but also in how to avoid political snares in the village. The story is full of heartwarming moments where Kakashi's care for Naruto is palpable.
One great fanfiction is 'Kakashi's Unwavering Shield'. In this story, Kakashi goes to extreme lengths to protect Naruto from various threats within the village. He even stands up against the council when they try to make unfair decisions regarding Naruto. It really shows the depth of his protectiveness.
One popular fanfiction is 'Kakashi's Unwavering Guard'. In this story, Kakashi becomes extremely protective of Sakura during a dangerous mission outside the village. He uses his skills and experience to keep her safe from various threats.
One reason could be that he sees Naruto as a younger version of himself in some ways. Both have had their share of loneliness and challenges growing up. Kakashi may want to prevent Naruto from going through the same pain he did. Another reason is Naruto's importance to the village. As the jinchuriki of the Nine - Tails, Naruto is a key asset. Kakashi, being a loyal ninja, wants to protect the village's future which is tied to Naruto.
Well, 'The Protective Sasuke' is another one. This fanfiction starts with Sasuke realizing his need to protect female Naruto after a certain event. It then unfolds with various scenarios where he showcases his protectiveness. From fending off other ninjas who might harm her to being there for her during personal struggles, Sasuke's character is really well - portrayed in this one.
One great fanfic could be 'The Bijuus' Unwavering Guard'. In this fic, the bijuus form a sort of shield around Naruto whenever he is in danger. They communicate with him telepathically and offer their strength. It shows how the relationship between Naruto and the bijuus evolves into one of mutual protection.
One great fanfiction with this theme is 'Fred's Unwavering Protection'. In it, Fred is constantly by Hermione's side, defending her from various threats in the post - war wizarding world. It beautifully showcases their friendship and Fred's protective nature.
I recall a fanfiction titled 'Protecting Hermione: A Slytherin's Duty'. In this story, the Slytherin's protection of Hermione is not just about her as an individual but also about his view of the greater good. He realizes that Hermione's knowledge and abilities are crucial for the wizarding world, and so he takes it upon himself to safeguard her from those who would want to use or harm her for their own purposes.
There's a fanfic called 'Kakashi and Naruto: ANBU Bond'. It focuses on the unique bond that forms between them during their ANBU days. It has some really interesting plot twists, like how they deal with internal ANBU politics while also facing external threats. It's a great read for those who love exploring the relationship between these two characters in a different setting.
One popular female Kakashi fanfiction might be those that explore her relationships within Team 7. For example, how she would interact with Naruto, Sasuke and Sakura differently as a female. Maybe she'd have a more nurturing side towards Naruto, understanding his loneliness better. Another aspect could be her training methods which might be tweaked to suit her female characteristics, like using more finesse in her combat training with the team.
There is a fanfic called 'Naruto's New Beginning'. In it, Kakashi steps in when he realizes Naruto is being abused. He provides Naruto with a stable home environment and imparts his wisdom and skills. It focuses on their growing bond as Kakashi becomes a father figure to Naruto. Then there's 'Kakashi's Protege'. This story details how Kakashi uses his unique training methods to help Naruto overcome his past traumas and become a force to be reckoned with in the ninja world.
I also like 'Draco's Redemption' where Draco starts to protect Hermione from various threats in the post - war wizarding world. The author does a wonderful job of showing Draco's growth and how his feelings for Hermione change from animosity to protectiveness. It has some really heart - warming scenes between them.