If it's a crossover with the Harry Potter universe, Hagrid could be a main character. Hagrid loves all kinds of strange and dangerous creatures. He might see the Indominus Rex as a misunderstood beast and try to tame it, but quickly realize that this dinosaur is far more dangerous than any creature he's dealt with in the wizarding world.
Naruto might try to befriend the Indominus Rex. He's always been one to see the good in others, even enemies. So he'd probably approach it with an open heart. Sasuke, on the other hand, would be more cautious and likely see it as a threat to be eliminated if necessary.
One idea could be an Indominus Rex crossover with the Jurassic Park raptors. The Indominus Rex could form an uneasy alliance with the raptors against a common threat, like a new genetically engineered dinosaur that's even more dangerous. This would create a lot of tension and interesting power dynamics.
One reason Indominus Rex human fanfiction is appealing is the contrast between the two. The Indominus Rex is a huge, fierce dinosaur, and humans are relatively small and frail. The stories can play on this contrast, creating high - stakes situations.
A fanfiction might explore the Indominus Rex transformation in a more magical way. Suppose there is an ancient artifact in the park that emits a strange energy. When the Indominus Rex comes into contact with this energy, it starts to transform. Its body becomes larger and more muscular, and it gains the ability to breathe fire. This new power would turn it into an unstoppable force in the park, and the other dinosaurs would have to either flee or team up to face this new threat.
The Indominus Rex in human fanfiction often takes on a role of a terrifying and powerful force. Writers might explore its intelligence and how it interacts with humans in a fictional world. It could be a story of survival against this genetically engineered monster.
Well, it's hard to say who the 'best' are as it depends on personal taste. But some authors who are known for their detailed descriptions and engaging plots in indominus rex fanfiction are often those who have a deep love for dinosaurs. They might be paleontology enthusiasts who turned to writing.
One idea could be a story where Godzilla and Indominus Rex are forced to team up against a common, even more powerful enemy. Maybe an alien invasion that threatens to destroy their world. They start off as enemies but gradually learn to work together.
One possible plot could be about the challenges of protecting a pregnant Indominus rex. Maybe the park staff in a Jurassic World - like setting have to ensure her safety from other dinosaurs and also deal with the mystery of how she got pregnant. They might have to create a special enclosure for her and face unexpected difficulties during her pregnancy.
There could be a fanfiction where the indominus rex forms an unlikely alliance with other dinosaurs. Maybe it teams up with a triceratops to fight off a common enemy like a group of poachers.