One possible plotline could be that Harry Potter discovers a new side of Fem Death that is not as menacing as she is often portrayed. Their relationship could start with a mutual curiosity and gradually turn into love as they get to know each other better.
Perhaps Fem Death is in some kind of trouble and Harry Potter, being the hero he is, tries to save her. In the process, they develop a deep bond. Or maybe it's a time - travel scenario where Harry Potter meets a younger version of Fem Death and they fall in love, which then has implications for the future of the wizarding world. There could also be a plot where Fem Death has some hidden powers that only Harry Potter can unlock, and through this connection, love blossoms between them.
One possible plotline could be that Harry discovers a magical doll during one of his adventures. This doll has some special power or connection to his past, and his love for it grows as he tries to figure out its mystery. Another could be that he starts collecting dolls as a way to remember his lost loved ones, and the dolls become a source of comfort for him in the dangerous wizarding world.
One possible plotline could be that fem Harry Potter discovers her new power as a jinchuuriki and has to hide it from the wizarding world which is not familiar with such powers. She might struggle to control the beast within her while also dealing with the usual Hogwarts drama.
One possible plotline could be that the fem Harry Potter, with her Kryptonian powers, tries to hide her dual identity in the wizarding world. Maybe she has to constantly keep her super - strength and other powers in check while at Hogwarts.
One possible plotline could be that Harry discovers a hidden family connection to the Death Eaters. Maybe his real parents were involved in some dark magic and he starts to explore this side of his heritage, which gradually makes him more sympathetic to the Death Eaters. Another could be that he is tricked by a powerful dark wizard into believing that the Death Eaters' goals are actually good for the wizarding world, so he starts working with them secretly.
Well, a possible plotline might be that Harry saves Narcissa during a dangerous situation in the wizarding war. This act of heroism makes Narcissa see Harry in a new light, and he in turn is drawn to her vulnerability. As they interact more, their relationship blossoms. Or, it could be that they are brought together by some magical force or prophecy that they initially resist but eventually give in to their feelings.
A possible plotline could involve Fem Ichigo being a huge Harry Potter fan in her world, and she writes fanfiction about it. But then, magically, the characters from her fanfiction come to life in her world. Harry and his friends are confused about this new world, and Fem Ichigo has to help them adjust while also trying to figure out how this happened. They might also encounter villains from both universes who team up, forcing them to work together to defeat the combined threat.
Yes, there might be some out there. You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own. Just search for the specific tags related to 'Harry Potter' and 'Fem Death' to find relevant stories.
One possible plotline could be that Harry discovers he has a half - brother he never knew about. Maybe his father had a relationship before he met Harry's mother, and this new character enters Harry's life. They initially have some conflicts due to jealousy or differences in upbringing, but over time, they come to love and support each other.
One possible plotline could be that through some magical accident or portal, Harry Potter (as a female in this fanfiction) ends up in the Naruto world. There, she meets Kakashi and they start off as friends but gradually fall in love. Another could be that both worlds somehow merge, and Kakashi and fem Harry are brought together due to their shared sense of duty and protectiveness over their respective worlds.
Another plotline could involve the Mudblood initially being terrified of the Death Eater due to their reputation. But as the story progresses, she might see the good in him and start to fall in love too. Their relationship could then be a story of overcoming differences and prejudices. For instance, they might have to face opposition from both the wizarding world that hates Death Eaters and the Muggle - born community that is suspicious of the Death Eater's motives.