Maybe the factions from Divergent are incorporated into the districts of the Hunger Games. The Dauntless could be in a district known for their fighting skills and they might rebel against the Capitol's rules for the Games. The Erudite could try to use their knowledge to find a way to stop the Hunger Games altogether. And the main characters from both stories could team up to fight against the oppressive systems.
A possible plot is that the Hunger Games is used as a test by the leaders in the Divergent world. They send their most promising Divergents to the Games to see if they can survive and bring back new strategies. The main character from Divergent, like Tris, might meet Katniss in the arena. They could learn from each other's strengths, such as Katniss' archery skills and Tris' courage in the face of fear, and together they start a revolution within the Games.
One interesting plot idea is the crossover of the unique skills from both worlds. For example, in some fanfictions, the Dauntless' fearless fighting skills are combined with the survival skills of the Hunger Games tributes. It creates really intense and exciting battle scenes.
One popular idea is crossovers. For example, imagining characters from Hunger Games in the world of Divergent or vice versa. Another idea could be exploring different 'what if' scenarios. Like what if Katniss from Hunger Games was in a different faction in the Divergent world. Also, fanfics often focus on the backstories of minor characters from both series.
A cool fanfiction idea could be that the world of Divergent and the Hunger Games are actually two parts of a bigger experiment. The main characters from both universes start to discover this connection during a Hunger Games where some strange, Divergent - like abilities start to show up among the tributes, and they have to figure out what's really going on.
One idea could be exploring a different faction's perspective in more depth. For example, showing the daily life and hidden secrets of the Amity faction. Another could be creating a new character who has unique abilities and seeing how they fit into the Divergent Games world.
Another plot could involve a group of tributes secretly planning to hijack the system that controls the Hunger Games starship arena. They form alliances not just to survive the games, but also to expose the tyranny of the Capitol - starship. They could use their knowledge of starship technology to outwit the game - makers.
Perhaps a fanfic where the fighter forms an unlikely alliance with a tribute from a much wealthier district. They combine their different strengths, like the fighter's combat skills and the other's knowledge of technology, to survive in the Hunger Games. This would explore how different districts can work together in unexpected ways.
One idea could be that the ponies from different pony tribes are forced into the Hunger Games arena. For example, the earth ponies might use their strength and connection to the land to find food and build shelters. The pegasi could use their flying abilities to gain a strategic advantage in the arena, like scouting from above. And the unicorns could use their magic for various things like defense or creating illusions to mislead opponents.
One idea could be changing the setting of the Hunger Games. Instead of a post - apocalyptic world, it could be set in a world where there's a strange magical curse that forces the games. Another could be focusing on a different type of tribute. For example, a group of scientists who are forced to compete and they use their knowledge in unexpected ways to survive.
One idea could be that Naruto and his friends are forced into the Hunger Games arena. Naruto might use his shadow clones to confuse opponents and search for resources. Another could be that the different ninja clans are pitted against each other in the Hunger Games, leading to some intense battles between rival clans.
One idea could be to focus on a new type of arena. For example, an arena that is constantly changing, like it shifts from a desert to a frozen tundra. Another could be to explore the backstories of the tributes more deeply. Maybe one tribute has a secret connection to the Capitol that they are trying to hide. A third idea is to have a group of tributes form an alliance not for survival in the games, but to send a message to the Capitol about the cruelty of the Hunger Games.