In some fanfictions, Hermione might help Snape when he is in trouble with the Ministry of Magic. She could use her logical thinking and knowledge of the wizarding laws to defend him. It could be that Snape has been wrongly accused of something, and Hermione steps in to prove his innocence. This would require her to dig deep into the Ministry's records and use her persuasive powers, which she has shown throughout the original series, to convince the authorities that Snape is not the villain they think he is.
One of the most popular themes is redemption. Snape has a complex past and many see Hermione as a character who can help him find redemption. Another theme is the power of knowledge. Hermione is known for her intelligence, and in these fanfictions, she uses her knowledge to assist Snape in various situations, whether it's solving a mystery or dealing with a magical threat. Friendship is also a common theme. Despite their differences in the original series, fanfiction often explores how Hermione and Snape can form an unlikely friendship.
Perhaps in a story where there's a spell gone wrong. The spell causes Snape and Hermione to be linked in a strange way. They start to experience each other's emotions and memories. As they work together to break the spell, they develop a deep connection and Snape, who has always been a complex character, shows a softer side and kisses Hermione as a sign of his new - found feelings.
In the fanfiction, it might be shown through Snape secretly watching over Hermione during dangerous situations. For example, in a battle or when she's being harassed by other students who are prejudiced against Muggle - borns.
One interesting plot could be Hermione trying to use her intelligence to outwit Fenrir Greyback. Maybe she's on a mission to rescue someone he's captured, and she has to use her magic skills in new and creative ways. For example, she could use a combination of transfiguration and charms to create distractions while she sneaks around his lair.
A really interesting plot could be Hermione being the Chosen One and having to deal with the jealousy and disbelief of her peers. Some might think she's faking it or that she's not worthy. This internal struggle within the wizarding community could add a lot of drama to the fanfiction. Also, it could lead to her proving herself in unexpected ways.
One interesting plot could be that Hermione discovers she is related to Voldemort in a prophecy. This prophecy states that she has the power to either destroy him or become his most powerful ally. She then has to make a choice, and the fanfic could explore her internal struggle as she decides which path to take.
In some fanfictions, Snape might blackmail Hermione over her grades. For example, he could threaten to expose some small mistakes she made in her potions work if she doesn't do him a favor, like helping him organize his ingredients. This creates a tense situation between them and often leads to Hermione trying to outwit Snape in some clever ways.
One possible plot could be that Hermione is stalking Snape to uncover some long - lost potions secrets that she believes he has. Maybe she suspects he's hiding a powerful antidote formula. Another plot could involve her stalking him because she thinks he has a connection to a dark wizard from the past and she's trying to prove it to protect Hogwarts. And in some fanfictions, she might be stalking him out of pure curiosity about his personal life, which is always so mysterious in the original series.
In some fanfiction, the son might have a special ability that combines Snape's Occlumency skills and Hermione's quick - thinking. He could use this ability to solve mysteries at Hogwarts. For instance, there could be a mystery surrounding an old magical artifact, and he uses his combined skills to figure out its purpose and protect it from those who would misuse it.
One interesting plot could be that in a post - war Hogwarts, Hermione discovers a hidden side of Snape through his old potions notes. She becomes intrigued and starts to work on some of his unfinished experiments, which leads to a series of adventures where she gradually understands his complex character better. This could involve her having to face some of the same challenges he did, like dealing with the dark arts influence in certain potions.