A possible scenario is that there is a magical item or a secret that Harry is in charge of, and Fenrir protects him to ensure that this item or secret doesn't fall into the wrong hands. Maybe this item has the power to change the wizarding world, and Fenrir realizes that Harry is the only one who can handle it properly, so he protects Harry to safeguard the future of the wizarding world.
One common scenario could be when Harry is in danger from other dark forces. Fenrir steps in to protect him, using his own strength and abilities. For example, if there are other werewolves or dark wizards attacking Harry, Fenrir defends him.
Another scenario might be that Harry is in a situation where he is being wrongly accused or hunted. Fenrir, who has come to know Harry better, decides to protect him from those who are after him. He could hide Harry in a safe place or fight off the pursuers. In some fanfictions, Fenrir might even use his werewolf pack to create a shield around Harry.
One common scenario is during battles. For example, in many fanfictions, when facing dark wizards, Harry positions himself in front of Hermione to shield her from spells. He uses his own body as a physical barrier, showing his extreme protectiveness.
One common scenario is in school settings. When other students are bullying Harry or trying to harm him, Draco steps in to protect. Another could be during dangerous magical events. For instance, when a dark magic spell is about to hit Harry, Draco uses his own magic to shield Harry.
Well, in this kind of fanfiction, Fenrir might be protective of Harry perhaps because he sees something special in Harry. Maybe he has his own reasons that are different from the normal perception of their relationship in the original works. It could be that Fenrir has a change of heart or there are some hidden plot elements that make him want to safeguard Harry.
One common scenario is Draco protecting Harry from other Slytherins who might still hold grudges against Harry. Another is Draco standing up for Harry during dangerous situations in the wizarding world, like when there are threats from dark wizards. And sometimes it's about Draco protecting Harry from the emotional harm caused by the wizarding society's expectations.
Another scenario is during dangerous magical experiments or when they are exploring old, dangerous parts of Hogwarts. Draco, being more familiar with the darker aspects of magic in some cases, will be protective of Hermione who is always eager to learn and might not fully grasp the risks. In these fanfictions, he'll stop her from doing something too risky or help her out when things go wrong.
One common scenario could be in a dangerous situation at Hogwarts, like when there's a dark magic threat. Cedric might step in front of Harry to shield him. Another could be during a Quidditch match where an opposing team is playing dirty, and Cedric ensures Harry is not targeted unfairly.
One scenario is when Harry is in danger during a duel or a battle. Snape might step in to shield Harry from a dark spell. Another could be when Harry is being bullied by other students or facing unfair treatment from the faculty. Snape, in these fanfictions, uses his position to protect Harry. For example, he might give Harry private lessons to improve his skills and keep him out of harm's way.
One common scenario is when they are out on a quest. Arthur always puts Merlin's safety first, even if it means putting himself at risk. For instance, in a dangerous forest filled with magical creatures, Arthur would stand in front of Merlin to face any threats.
Friendship or mentorship can also be a theme. In some fanfictions, Harry might take on the role of trying to mentor Fenrir, to help him control his werewolf side. Or they could form an unexpected friendship that challenges the norms of the wizarding society. This kind of relationship development can be really interesting to read about.
One common theme is the idea of redemption. Fenrir is often seen as a villain, and through his adoption of Harry, he may find a path to redemption. For example, in some stories, he starts to care for Harry and in the process, he changes his ways.