Another plot could involve a character from the real world being transported into the Hunter x Hunter universe and having to quickly adapt to the system. They could start as a weak novice but then use their knowledge from the real world to find unique ways to level up and become a powerful Hunter. For example, they might use modern strategic thinking in battles or in exploring the complex world of Hunters.
A really interesting plot could be a 'what - if' scenario. For instance, what if the Chimera Ants had a different origin within the Hunter x Hunter system? Maybe they were an experiment gone wrong by some ancient group of Hunters trying to create a new type of Nen - using creature. This could change the entire dynamic of the story, as the characters would have to deal with the Chimera Ants in a completely different way.
A plot could revolve around Menchi's past. Maybe she has a hidden connection to a powerful group or a long - lost family member. This could lead to a story of self - discovery as she uncovers secrets from her past while still maintaining her role as a hunter and a food expert. She might have to face old enemies or make difficult choices regarding her new - found knowledge.
One idea could be the main character using gamer skills to quickly learn Nen abilities in unique ways. For example, they might have a leveling system for their Nen types, which gives them an edge in battles against other Hunters or enemies.
A possible plot for 'Kaito Hunter x Hunter fanfiction' is that Kaito enters a special tournament in the Hunter x Hunter world. This tournament has rules and challenges that are different from the normal ones. He meets new and interesting characters during the tournament, some of whom become his friends and some his enemies. As he progresses through the tournament, he uncovers a conspiracy that is related to the very foundation of the Hunter x Hunter world. He then has to decide whether to expose it and risk his life or keep quiet and let the conspiracy continue.
In a 'Hunter x Hunter crossover RWBY fanfiction', it could be that the Nen abilities in Hunter x Hunter are seen as a form of magic in the RWBY world. Some of the RWBY characters are fascinated by this new power source and want to learn about it. So, they make a deal with the Hunters to exchange knowledge about their respective powers. This leads to some really interesting training sessions and battles where they combine Nen and Semblance powers.
One idea could be that Naruto and Gon meet during a strange interdimensional rift. They initially misunderstand each other but soon realize they have a common goal of protecting their friends and worlds. Another could be that the Akatsuki and the Phantom Troupe somehow cross paths and form an uneasy alliance to achieve their own ends, which involves stealing powerful artifacts from both Naruto's world and the Hunter x Hunter world. And a third idea might be that Naruto and Killua swap places for a short time, experiencing the different power systems and cultures of each other's worlds.
One idea could be that Pokkle and Ponzu discover a hidden area in the Hunter x Hunter world filled with unique and powerful creatures. They have to team up with some unlikely allies to survive and document these new finds.
One idea could be a female OC who is a skilled Nen user with a unique ability related to illusions. She could get involved in the Hunter Exam and form an unlikely alliance with some of the main characters. For example, she might use her illusions to help Gon and Killua in a difficult part of the exam.
A really interesting plot could be set in an alternate universe where Gon and Kurapika have different roles. For example, Kurapika could be a carefree adventurer like Gon usually is, and Gon could be more focused on revenge like Kurapika. This role - reversal would create a whole new dynamic between them and could lead to some really unique storylines.
One idea could be a crossover with Naruto. Gon and Naruto could team up and learn from each other's unique ninja and hunter skills. They might compete in a friendly way to see who's stronger in different aspects like physical strength or strategy.
One idea could be exploring the next generation of Hunters. Maybe Gon and Killua have kids who inherit their unique abilities and embark on their own adventures. They could face new threats and discover hidden secrets in the Hunter world.