One common theme is family. Since Mrs Zabini has a family, many fanfictions explore her family dynamics, like her relationship with her son Blaise Zabini. Another theme is social status. As a part of the wizarding high society, her status is often a key element in stories.
Perhaps Mrs. Zabini is involved in a political intrigue within the wizarding society, and the 'lemon' element comes in when she uses her charm or a romantic relationship to gain an advantage. For example, she could be trying to influence a powerful wizard, and the relationship between them is both a means to an end and has an underlying emotional and physical aspect. This could create a complex web of relationships and power plays within the fanfiction world.
Maybe she's sharing some secrets about the wizarding world that she has come across. It could be something related to a hidden magical artifact or an old family spell.
One great 'Harry Potter Mrs Zabini' fanfiction is 'The Zabini Legacy'. It delves into the backstory of Mrs Zabini and her family's influence in the wizarding world. Another is 'Mrs Zabini's Secrets' which reveals some hidden aspects of her character and her interactions with other Hogwarts families.
There are many 'Harry Potter' fanfictions out there, but finding one with Mrs. Zabini and a 'lemon' (which often implies a more adult - themed or romantic situation) can be a bit tricky. Some fanfiction communities might have threads where people recommend such stories. For example, on Reddit's Harry Potter fanfiction sub - forum, you could post a request asking for fanfictions with these elements.
In this fanfiction, Zabini could develop in several ways. At first, he may seem like a typical villain, but as he spends more time with Hermione, he realizes the error of his ways. He could have a backstory that is revealed, explaining why he got involved in the kidnapping in the first place. Maybe he was forced into it. As the story unfolds, he might grow to respect Hermione and even fall in love with her, which would completely transform his character from a kidnapper to a protector.
Once upon a time, Blaize Zabini met a kind - hearted girl in the Hogwarts library. Their eyes met over a shared interest in a rare magical tome. Blaize was immediately drawn to her intelligence. They started to exchange notes about the book, and soon, those notes turned into little love letters. They would meet secretly among the bookshelves, sharing stolen glances and soft smiles. Eventually, Blaize found the courage to ask her to the Yule Ball, and that was the start of their beautiful love story.
Love against all odds is also a major theme. Given their different social standings and the general divide in the wizarding world, their relationship is seen as something that has to fight against many obstacles. Fanfictions often show how their love blossoms despite the prejudice and challenges they face.
Maybe Chiwetel Ejiofor. He has shown in his previous roles that he can play complex characters with a lot of emotional range. For this role, he could bring out the more ambiguous nature of Blaise Zabini's dad, whether he's a good guy or a bad guy or something in between.