One interesting plotline could be about the surviving heroes trying to regroup and find a way to reverse the Snap. They might face internal conflicts as they deal with their guilt and loss. Another could be exploring how different planets are coping with the sudden loss of half their population.
Thor is really popular. After all that he's been through in Infinity War, fans want to see how he copes in the aftermath. Captain Marvel is also a favorite. She's so powerful and her arrival in the MCU added a new dynamic. In fanfictions, she could play a major role in dealing with the consequences of Infinity War.
One interesting plotline could be the survivors trying to reverse the Snap. They might embark on a dangerous quest to find the Infinity Stones again, facing new enemies along the way. Another could be the psychological impact on the remaining heroes, like Thor dealing with his newfound failure and depression more in - depth.
Definitely Doctor Strange. Since he had a major role in Infinity War and his actions were so mysterious, many fanfictions explore his further plans post - Snap. Another popular one is Captain America. People love to write about how he continues to inspire hope among the survivors.
Another plot could focus on Thor. After losing so much in Infinity War, he might become a bit of a recluse. But then he realizes that he has a responsibility to the remaining Asgardians and the universe. So he starts to gather the remaining heroes and form a new plan to fight against the consequences of Thanos' snap.
Wanda Maximoff could also be the main character. After losing Vision, she could be on a rampage. But then she realizes that she needs to control her powers and use them for the greater good. She could be a key player in trying to bring back the vanished ones and fighting any new threats that emerged after Infinity War.
Surely the remaining Avengers like Iron Man, Captain America, and Thor are important. They are likely to be at the forefront of trying to fix things. Also, characters like Black Widow who are strategic thinkers would play a crucial role.
Well, in the 'infinity war aftermath novel', one of the key events is the exploration of how different planets are affected. Some might be in chaos due to the sudden disappearance of half their populations. Also, the relationships between the remaining heroes are strained as they all have different ideas on how to move forward. And there's probably a lot of mystery surrounding Thanos' actions and if there are any lingering threats related to his plan.
One of the most impactful storylines could be Peter Parker dealing with the loss of his mentor, Tony Stark. In the aftermath of Infinity War, Peter is left without the guidance and support he had come to rely on. This could lead to him struggling with his identity as Spider - Man and his place in the post - Snap world. Another storyline might involve how the remaining heroes look to him as a symbol of hope, despite his own insecurities.
A third storyline could be about the villains who survived or emerged after Infinity War. Maybe some of them see an opportunity to take over in the power vacuum left by Thanos. The fanfic could explore how the heroes have to deal with new threats while still reeling from the events of Infinity War.