You can try Archive of Our Own (AO3). It has a vast collection of fanfictions across different fandoms, including anti - team Iron Man ones. Just use the search function and type in relevant keywords like 'anti - team Iron Man' and browse through the results.
Some anti - team Iron Man fanfictions may also center around his relationships with other characters. For example, a story could show how his actions strain his friendship with Captain America to the point of no return. It could explore how his unwavering belief in his way of handling things creates a rift that is impossible to mend.
One aspect that could be interesting in such a fanfic is the character development. The members of Team Iron Man, like War Machine, had their own reasons for siding with Iron Man. A fanfic could delve deeper into their relationships and how they were affected by the rift between the two teams. It could also show how Iron Man's technology played a crucial role in their fight against Team Cap. Maybe there could be some cool tech - based solutions to problems that Team Cap created with their more 'freedom - first' approach.
Characterization. It should accurately portray the members of Team Iron Man. For instance, Iron Man is a complex character. He's a genius, billionaire, playboy, philanthropist. A good fanfic would show how these traits influenced his decisions during the conflict with Team Cap. His intelligence led him to see the potential danger of the unregulated Avengers, and his wealth allowed him to develop the tech to combat them if necessary.
Well, there's a fanfiction called 'Iron Man's Elite Squad'. In this story, Iron Man recruits some lesser - known but extremely talented individuals to form a unique team. It has a great plot that involves them facing off against a new, formidable enemy. Also, 'Team Iron Man: Reborn' is quite interesting as it explores what would happen if Iron Man had to reform his team after a major setback.
You can start by looking on Archive of Our Own (AO3). It has a large collection of fanfictions, and there are many 'Team Iron Man' ones there. Another place is Fanfiction.net, which also has a decent number of stories related to this topic.
In Pro Team Iron Man fanfiction, a frequently seen theme is the exploration of alternate universes. Writers might create scenarios where Iron Man is part of a different team or has different powers. His role as a mentor is also a common theme, especially when it comes to younger heroes. And of course, the battle against his enemies, whether it's old foes or new threats created by the writers, is always a central theme.
One interesting story could be about Iron Man's internal struggle during the Civil War. Maybe he has doubts about his side but feels pressured to continue. Another could focus on his relationships with the other team members, like how he tries to keep them united in his view. And there might be a fanfiction where Iron Man discovers a new technology during the Civil War that could change the course of the conflict.
One common theme is loyalty. Writers often explore how the members of Team Iron Man are loyal to Tony Stark and his vision for the Avengers. They show how this loyalty drives their actions during the civil war.
In a team Iron Man time travel fanfiction, a great plot could be that Iron Man travels to the future by accident. There, he discovers a world in ruins because of some actions he took in his present. So, he has to travel back and correct those actions. He teams up with his past self and other Avengers from different time periods to make sure the future is saved. This would involve a lot of character development as the different versions of Iron Man and the Avengers have to work together and understand each other's perspectives.