One possible plot could be helping Hermione with her overloaded study schedule. Maybe the protagonist offers to take on some of her library research tasks so she can have a bit of a break.
Dumbledore could also make an appearance. He often has his eye on the students and might offer some wisdom or assistance to the character who is trying to do Hermione a good deed. He could be the one who gives a hint about how to help Hermione in a particular situation.
One possible interesting plot could be helping Hermione with her overloaded study schedule. Maybe the protagonist takes on some of her research tasks in the library, which leads to them uncovering a long - lost magical secret together.
Well, one possible plot could be Ash and Misty teaming up to save a group of Pokémon from a powerful villain in a very unique way. Another could be them exploring a mysterious new region together and discovering rare Pokémon. Or perhaps they have to overcome some personal differences to become better friends and Pokémon trainers.
One possible plot could be Hermione using her intelligence to find a way to repel Dementors without using a Patronus. Maybe she discovers some ancient magic or potion that can keep Dementors at bay. Another plot could involve a Dementor being somehow controlled by a dark wizard to specifically target Hermione, and she has to outwit both the Dementor and the wizard. There could also be a story where Hermione befriends a Dementor in a very strange turn of events, perhaps by understanding its true nature and finding a way to communicate with it, which would be a very unique take on the relationship between a character and a Dementor in fanfiction.
Well, in some cases, the plot might involve Hermione using her extraordinary intelligence in new and unexpected ways. For example, she could be inventing new spells far beyond what is taught at Hogwarts. Maybe she discovers a hidden aspect of magic that even the most learned wizards don't know about. This could lead to her having to face challenges from those who are threatened by her newfound knowledge.
Well, one possible interesting plot could be Hermione using her intelligence in a mercenary role to outwit her opponents. For example, she might use her knowledge of magic to create unique battle strategies.
One possible plot could be that Hermione and the Black character initially face opposition from the wizarding society due to their different backgrounds. But through their love and determination, they break barriers. For example, they might have to deal with the prejudice of Hermione's friends at first, but as time goes on, everyone sees how much they truly care for each other.
Well, in some 'Hermione and Harry Dark Fanfiction', there might be a plot where they enter a dark, alternate magical realm. In this realm, they have to rely on their friendship and skills in new ways. They could encounter dark versions of their friends and have to fight against them, which would really test their loyalty to each other.
One interesting plot could be that Fang gets lost in the Forbidden Forest and Hermione goes to find him. Along the way, they encounter some magical creatures that Hermione has only read about. And the 'lemon' aspect could be added in a way that while they are hiding from a dangerous creature, they share a very close and warm moment that shows their deep bond, but in a more innocent and emotional way, not necessarily in an adult way.
Another plot could involve them facing challenges from the wizarding community. Some might not approve of their union because of their different backgrounds. They would have to fight against prejudice and prove that their love is strong enough to overcome any external difficulties. They could work together to show everyone that their marriage is based on mutual understanding and deep affection.