Some fanfictions focus on the relationships within Danny's class when they are exposed to the Ghost Zone. For example, there's a story where two classmates who used to dislike each other end up becoming best friends while trying to survive in the Ghost Zone. You might also find some on Archive of Our Own that explore different aspects of Danny's class and the Ghost Zone in really creative ways.
You can try looking on fanfiction.net. There are often some great stories there about Danny's class and the Ghost Zone. One I remember has Danny's class getting trapped in a mini - Ghost Zone inside the school. It was really exciting as they had to figure out how to escape while also dealing with mini - ghosts.
There's a fanfiction where a member of Danny's class is actually a half - ghost from the Ghost Zone but doesn't know it. As the story progresses, Danny helps them discover their true identity and they all have to deal with the consequences. Another good one is where Danny's class gets invited to a 'Ghost Festival' in the Ghost Zone, which turns out to be a trap set by a powerful ghost.
One interesting fanfiction could be where Danny's class accidentally gets transported to the Ghost Zone. They have to rely on Danny's ghost powers to survive and find their way back. Another could be a story where a new student in Danny's class has a secret connection to the Ghost Zone and they team up with Danny to face a new threat from there.
There's also 'Phantom's Unlimited Potential'. This fanfiction delves into Danny's untapped powers. It shows how he discovers new ways to use his ghost powers, like being able to manipulate time on a small scale within the Ghost Zone. This gives him an edge over other powerful ghosts he encounters.
I'm not sure of specific titles off the top of my head, but you can start by looking on popular fanfiction websites like Archive of Our Own. Just search for 'Danny Phantom Evil Danny' and you'll likely find a bunch of interesting reads. Check out the ones with high ratings and lots of reviews.
There is a fanfiction titled 'Danny's Melodic Ghostly Adventures'. In it, Danny discovers that his singing can manipulate the ectoplasm around him, creating beautiful and sometimes useful effects. It's a really creative take on his abilities.
One interesting plot could be Danny facing a new, extremely powerful ghost in the Ghost Zone who challenges his title as the King. This ghost might have unique powers that Danny has to figure out how to overcome.
Obviously Danny himself is a must - include. Then there's Vlad Plasmius, his archenemy, who could have some devious plans in the Ghost Zone. Sam and Tucker, Danny's human friends, can also be included, maybe they get dragged into the Ghost Zone somehow. And some of the more well - known ghosts like Skulker or Ember could add a lot of action and drama to the fanfiction.
In a Danny Phantom Ghost Zone Fanfiction, a great plot could be that Danny discovers a portal within the Ghost Zone that leads to an alternate dimension full of even more powerful and strange ghosts. He has to explore this new place to find a way to close the portal before the dangerous ghosts from that dimension invade the regular Ghost Zone and then the human world. Another idea is that there's a competition among ghosts in the Ghost Zone, and Danny gets involved. He has to use his wits and powers to win the competition, which has a great reward that could help him protect both the Ghost Zone and the human world better. Also, Danny could find a ghostly artifact in the Ghost Zone that gives him new powers, but also attracts the attention of all the wrong ghosts, leading to a series of intense battles.
There's also 'The Snapped Reality' which explores what would happen if Danny made a different choice at a crucial moment. The plot twists are really engaging and it keeps you hooked from start to finish.
One great fanfiction could be where Danny has to deal with new threats in the Ghost Zone while trying to balance his life as a prince and a human. Maybe he forms an alliance with some unexpected ghosts to protect his throne.
In such a fanfiction, Danny's appearance could be altered too. The Ghost Zone's influence might make him look more ghostly. His story could involve him trying to find his place in both the human world and the Ghost Zone. He would face challenges like being accepted by humans despite his different upbringing and also trying to fit in among the complex social hierarchies of the Ghost Zone. It could be a story full of self - discovery, action, and adventure as he navigates these two very different worlds.