One possible plotline could be that Cyrus Black is revealed to be a long - lost relative of Harry, and he takes Harry under his wing to train him in a special kind of magic. Another could be that they meet during a dangerous adventure and have to rely on each other to survive.
There are numerous potential plotlines. For instance, Cyrus Black could be a powerful wizard who has been in hiding for years, and Harry stumbles upon his hiding place. Cyrus then decides to help Harry defeat Voldemort in a different way than what was originally planned in the series. It could also be that Cyrus Black has a connection to an ancient magical artifact that Harry needs to complete a task, and their journey to find and use this artifact forms the plot of the fanfic. Additionally, they could be part of a secret society within the wizarding world that has its own set of rules and goals, and they have to navigate through the challenges presented by this society while also dealing with the overarching threats in the wizarding world.
Maybe Harry leaves the wizarding world and uses his magical skills in the muggle world as a mercenary. He could be hired for dangerous jobs that require a touch of magic but need to be kept secret from the muggles.
One possible plotline could be them collaborating on a charity event. They both come from high - profile families and might be involved in fundraising and helping the community together in the fanfic.
One possible plotline could be Harry coming to power after a great war in the wizarding world. He then has to deal with rebuilding and unifying the different wizarding communities under his rule as emperor. He might face resistance from some traditional wizarding families who don't want to accept a new form of government.
One possible plotline could be that it's a moment of unexpected playfulness between Draco and Harry. Maybe they are in a truce situation, and Draco, in a moment of light - heartedness, decides to tickle Harry as a form of friendly teasing. It could be a way to show a new side of their relationship, moving away from their usual rivalry.
In a 'Harry Potter is an assassin' fanfic, the plot could start with Harry being trained by an unknown and powerful wizard who has his own motives for creating an assassin out of Harry. This trainer could be someone from a far - off land or an ancient order. Harry then starts taking on targets within the wizarding world that are supposedly 'evil' but as he delves deeper, he realizes that things are not as black and white as he was told. His friends start to notice his strange behavior and he has to either come clean or keep lying to them. As the story progresses, Harry might have to make some tough choices between his loyalty to his friends and his new - found assassin duties, all while uncovering secrets about the wizarding world that were previously hidden.
Perhaps in this fanfiction, the magic of the Harry Potter universe and the technology/vibranium of Wakanda are somehow intertwined. For example, the Deathly Hallows could have a connection to Wakandan artifacts. Harry could find himself in Wakanda and be mistaken for a threat at first. But as he proves his good intentions, he and Black Panther could start to exchange knowledge. They could then use their combined powers and knowledge to stop a dark force that is trying to steal Wakandan resources and use them to gain power over the wizarding world.
Yes, there are quite a few. You can start by looking on popular fanfic platforms like Archive of Our Own. Some might focus on unique adventures of Harry with Cyrus Black as a central character, exploring their relationship in different magical scenarios.
One possible plotline could be that the girl is a new servant in the Black Butler household. While exploring the garden, she stumbles upon a strange object or a hidden door that leads her to a part of the Black Butler world she didn't know existed. This discovery could put her in danger as she uncovers secrets that some characters want to keep hidden.
One possible plotline could be them working together on a dangerous mission in the wizarding world. They gradually develop feelings for each other as they face various challenges and rely on each other's skills. Another could be that Amelia Bones discovers some long - hidden secret about Harry's past that brings them closer. Or perhaps there's a plot where they are forced to pretend to be in a relationship for some political or magical reason in the wizarding community, and then real feelings start to develop.
In the 'harry potter after hogwarts fanfic', a really interesting plot could be about the discovery of new magical creatures or lost spells. Harry, being the adventurous type, might go on quests to explore these new elements. He could also get involved in international wizarding relations, using his fame and experience to bridge gaps between different wizarding communities around the world. This would open up a whole new world of magic for the readers to explore.