It could be a rogue hunter who has his own twisted ideas about the use of Nen. This hunter might see Pokkle and Ponzu as obstacles in his quest for power and knowledge. He could try to capture them to steal their Nen abilities or the information they have about certain areas of the Hunter x Hunter world.
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.
Fanfiction.net is also a good place. There are many dedicated Hunter x Hunter fans who post their works there. Look for the tags related to Ponzu. Sometimes, you might need to dig a little deeper as there are a lot of stories, but it's definitely worth it.
One great Ponzu Hunter x Hunter fanfiction could be 'Ponzu's Unseen Adventure'. It might explore her backstory more deeply, like her reasons for entering the Hunter Exam in the first place. Another could be 'Ponzu and the Mysterious Beasts', where she encounters strange creatures and uses her unique skills to survive.
A 'ponzu oc hunter x hunter fanfic' is likely a fan - created story. Ponzu could be an OC that the author has made up. In the Hunter x Hunter world, this fanfic might involve Ponzu getting involved in the Hunter Exam, facing off against the likes of Hisoka or other examiners. They could be on a quest to find rare items or secrets in the world, which is full of strange creatures and hidden powers.
One way is to expand on her skills. Maybe she has a talent for something other than what we've seen in the original series, like being an excellent tracker or having a deep understanding of the history of certain artifacts in the Hunter x Hunter world. This new skill could open up new plotlines and interactions for her.
Sorry, I'm not really familiar with specific 'ponzu oc hunter x hunter fanfic' works. But you can try searching on fanfic platforms like Archive of Our Own or Fanfiction.net. There you can use the relevant tags to find similar works.
A possible storyline is that Ponzu discovers a new type of Nen ability that no one has seen before. This could put her in a dangerous situation as others may try to either steal it from her or use her for their own gain. She then has to rely on her wits and any allies she can find to protect herself and this new power.
One way is through intense training. In fanfiction, a character might undergo extreme physical and mental training regimens that push their limits. For example, Gon could train in isolation with more powerful nen masters, learning new and advanced nen techniques that weren't shown in the original series. This could include more complex manipulation of his aura, like creating multiple types of nen beasts for different purposes.
The 'hunter x hunter meruem x oc fanfiction' often explores unique relationships. It might show how an original character (OC) interacts with Meruem. Maybe the story focuses on the OC influencing Meruem's view of the world, or vice versa. It could also be about their adventures together in the complex world of 'Hunter x Hunter'.