Well, in many fanfictions where Hermione saves the House of Black, she often uses her intelligence. For example, she might discover some ancient magic spells that can restore the dilapidated parts of the house or protect it from dark forces. She could also use her knowledge of wizarding history to find hidden treasures within the house that help in its restoration and salvation.
It also has implications for the wizarding world as a whole. The House of Black has a long and complex history. By saving it, Hermione is essentially preserving a part of wizarding heritage. This could lead to new alliances and changes in the power dynamics among the wizarding families. It might also bring to light secrets long buried within the house that could have far - reaching effects on the wizarding world.
In many fanfictions where Hermione saves Cedric, it often involves her using her intelligence. Maybe she discovers a plot against Cedric in time and uses her magic skills to prevent his death. For example, she could use a powerful protection spell or figure out a way to expose the real danger that was set for Cedric in the Triwizard Tournament.
There's a fanfic called 'Hermione's Heroism'. It details how Hermione risks everything to save Ron when he's been poisoned. The author does a wonderful job of showing Hermione's determination and her love for Ron through her actions. It also has a really interesting sub - plot about Hermione exploring some ancient magic to find the cure.
One possible scenario could be that in this fanfiction, Harry discovers that Hermione is being bullied by some dark - minded students at Hogwarts. He steps in immediately, using his skills and the respect he has among his peers to put an end to it. Maybe he threatens the bullies with exposure to the professors if they don't stop.
There's a fanfiction called 'Greyback's Redemption Arc'. In it, Fenrir Greyback saves Hermione from a group of Death Eaters. The author might have written it to explore the idea of redemption for a character like Greyback. Maybe he saves Hermione because he sees her as a symbol of the good in the wizarding world that he has lost touch with, and this act of saving her could be the start of his journey towards redemption.
He could use his position of authority. Snape might confront the abuser directly. Since he's a teacher, he has the power to intimidate and put a stop to any immediate harm. He could also give Hermione a safe place to stay, like his own quarters (if it's within the rules of the fanfiction world).
The theme of sacrifice also appears. Snape may have to sacrifice his own safety, reputation or his standing within the wizarding world to save Hermione. This shows his selfless side that might have been hidden before. And in some fanfictions, this sacrifice is what ultimately changes the course of the story and the characters' development.
In many fanfictions where Ron saves Hermione from Cormac, it often showcases Ron's protective side. Maybe Cormac was being too pushy or overbearing towards Hermione, and Ron steps in. It could be a moment that solidifies their relationship in the fan - made story, showing that Ron truly cares for Hermione and is willing to put himself in a difficult situation to protect her.
A good Hermione saves Ron fanfiction often has a strong plot. For example, the danger Ron is in should be well - defined and the way Hermione overcomes it should be clever and in - character. So if Ron is trapped in a magical maze, Hermione should use her knowledge and skills, like her spell - casting abilities and research skills, to find and save him.