Well, a plot could revolve around a spell gone wrong. Hermione is experimenting with a new time - altering spell and it accidentally brings Abraxas Malfoy into her present time. At first, he is completely out of place and Hermione has to keep him hidden while trying to find a way to send him back. During this time, they start to understand each other's perspectives. He learns about the more inclusive and accepting wizarding world of her time, and she gets insights into the old - fashioned pure - blood ways of his time.
A possible plot idea is that in an alternate universe, the wizarding world has different alliances. Hermione and Abraxas meet at a magical symposium where they are both presenting on different forms of magic. They initially clash but then realize they have more in common than they thought. Or perhaps there is a mystery that only their combined skills can solve. Maybe a dark magic artifact that is related to both Gryffindor and Slytherin, and they must put aside their differences to stop its power from being misused.
A possible plot could be that Abraxas Malfoy is in a difficult situation, perhaps being wrongly accused of a dark magic crime. Hermione, being the intelligent and just witch she is, decides to help him prove his innocence. Along the way, they learn about each other's values. Hermione realizes that not all Slytherins are as bad as she thought, and Abraxas sees that Gryffindors can be more than just brash and impulsive. Their relationship evolves from distrust to a sort of mutual admiration as they face various challenges in clearing his name.
One common theme is the clash of different eras. Abraxas is from an earlier time in the wizarding world, and Hermione is from the modern era. So, the differences in values and magic use are often explored.
One idea could be that they are forced to work together on a magical research project. Hermione's vast knowledge and Lucius's experience in the wizarding world create an interesting dynamic. They start off hating each other but gradually come to respect one another's abilities.
Yes, there are some interesting Abraxas Malfoy and Hermione Granger fanfictions out there. You can start by looking on platforms like Fanfiction.net or Archive of Our Own. Some of them explore unique alternate universes where their paths cross in unexpected ways.
One idea could be a time - travel plot where Harry Potter accidentally travels back in time and meets Abraxas Malfoy. He could try to change certain events related to the Malfoy family's future actions in the wizarding world. Another plot could involve Abraxas Malfoy leaving behind a mysterious magical artifact that Harry discovers. Harry then has to figure out what it does and if it has any connection to the dark past of the Malfoy family.
One plot idea could be that Abraxas Malfoy, being from an older generation, has some long - forgotten knowledge about Hogwarts' secrets. Harry discovers a diary or an old parchment left by Abraxas that leads him on a quest to find a hidden magical artifact within the school. This could involve Harry having to interact with the ghosts of Hogwarts who knew Abraxas personally.
A plot could involve FemHarry having a special connection to an ancient magical artifact that Hermione helps her research. As they dig deeper, they find out it has the power to change the wizarding world. They then have to protect it from dark wizards who want to use it for evil. This would lead to a lot of action and suspense.
Well, a plot might be that Hermione is deaged due to a magical accident in the library. As a deaged Hermione, she has a different view on things. She might start to question the rules of Hogwarts more, as she doesn't have the same level of respect for them as her older self. Her friends, Harry and Ron, would have to deal with this new, more rebellious Hermione while also trying to figure out how to reverse the deaging spell. This could cause a lot of chaos in Hogwarts.
One plot idea could be Hermione helping Hagrid with a new magical creature he discovers. Maybe it's a creature that has unique abilities and Hermione uses her extensive knowledge from books to figure out how to take care of it.
One plot idea could be that Hermione, through some magical accident, ends up in the Asgardian realm. Thor then has to help her get back home while she uses her magic to solve various problems in Asgard, like dealing with a mysterious magical threat that the Asgardians' magic can't handle.