In a 'fem Harry Potter the Hobbit crossover fanfiction', the main antagonists could be a combination of characters from both universes. Bellatrix Lestrange could be a major threat, following Harry to Middle - earth. And in Middle - earth, the giant spiders like Shelob could be antagonists. They would try to stop the female Harry Potter from achieving her goals, whether it's helping the hobbits or finding a way back to her own world.
Voldemort could be one of the main antagonists. He could follow the female Harry Potter through the portal to Middle - earth, causing chaos there. Also, the orcs and other dark creatures from Middle - earth like the Nazgûl could be antagonists. They would oppose the female Harry Potter and the hobbits or dwarves she teams up with.
One idea could be that a female Harry Potter somehow gets transported to Middle - earth from the wizarding world. She could use her magic skills to help the hobbits in their quest. Maybe she teaches them some simple spells for protection or to make their journey easier.
The Death Eaters could still be the main antagonists. They might see Fem Harry Potter's new - found goddess - like powers as a threat to their plans of taking over the wizarding world. So they would try to stop her at all costs.
The traditional wizarding authorities could be antagonists. Since Fem Harry Potter is into pirate stuff which might be seen as unorthodox in the wizarding world, they could try to stop her from following this new path.
One key element is the character of fem Harry Potter herself. Her different personality traits compared to the original male Harry Potter can greatly influence the story. For example, she might approach challenges in a more empathetic way. Another element is the merging of the two worlds. The magic of Harry Potter's world and the unique races and cultures in The Hobbit's Middle - earth need to be blended well. This could include how spells interact with the creatures like dwarves and hobbits.
A popular one is 'Fem Harry and the World of Middle - earth'. This fanfic is really interesting because it crosses over the Harry Potter universe with Tolkien's Middle - earth. Here, Fem Harry has to adapt to the very different cultures and magic systems in Middle - earth, and there are some great character interactions that add depth to the story.
Voldemort could still be a main antagonist. Even if Fem Harry has a new inheritance, Voldemort would see her as an even greater threat. He might try to steal her inheritance or stop her from using it to defeat him. His Death Eaters would also be involved, trying to carry out his evil plans against her.
The nogitsune could also be a major antagonist. It thrives on chaos and mischief, and a powerful wizard like fem Harry Potter in its territory would surely draw its attention. It might try to possess her or use her magic for its own evil purposes.
One interesting plot could be that the wizards from Harry Potter world accidentally stumble upon the Shire while on a magical experiment gone wrong. They meet the hobbits and learn about their simple yet fulfilling lives. Meanwhile, the hobbits are in awe of the magic the wizards possess. Then, an ancient evil that threatens both the wizarding world and Middle - earth emerges, forcing them to combine their strengths. The wizards use their powerful spells and the hobbits' courage and resourcefulness to fight against it.
Another great option for beginners is 'Fem Harry's First Adventure in Narnia'. This fanfic doesn't go too deep into complex crossovers. It focuses on Fem Harry's journey into the magical land of Narnia. The story is written in a very accessible way, with clear descriptions of both the Harry Potter - like elements and the new Narnia world she discovers.
One popular fem Harry Potter Hobbit fanfiction is 'The Hobbit in Hogwarts'. It combines the magical world of Harry Potter with the charm of Middle - earth from The Hobbit. In this fic, a female version of Harry Potter somehow ends up in Middle - earth and has to use her Hogwarts - learned magic to survive and make her way back home.