It could be interesting because it would force the other Avengers to grow in different ways. They would have to adapt without his resources and skills. This could lead to new friendships and rivalries within the team. Plus, we could see how the Avengers deal with threats without Stark's input, which might involve them using more unconventional methods.
In such a fanfiction, it would be interesting to explore how the world views the Avengers without Tony Stark. Maybe they struggle to be as effective in the public eye. Also, we could see Stark interact with other non - Avengers characters more. He might form his own group of heroes or anti - heroes. And the power balance in the Marvel universe would shift, creating new and exciting storylines.
Perhaps Stark sees the destruction that the constant battles between superheroes and villains are causing to the Earth and the universe. He might think that Thanos' radical solution is the only way to bring a long - lasting peace. He could be convinced that by joining Thanos, he can influence Thanos to be less extreme in his methods. However, this is a very dangerous gamble as Thanos is not easily swayed.
In a Tony Stark Avengers toy fanfiction, imagine the toys are actually miniaturized versions of the real heroes. Tony Stark's toy is the most advanced. It can repair the other toys when they get damaged. A villain tries to steal the Stark toy to reverse - engineer its technology for evil purposes. The other toys, with the leadership of the Stark toy, must fight to protect themselves and the world from this threat.
One reason could be that he's frustrated with the leadership or the direction the Avengers are taking in the fanfiction. He might feel his ideas are not being heard.
One popular type of fanfiction could be about Tony Stark's daughter joining the Avengers. Maybe she inherits his genius and creates her own high - tech suit. She might struggle at first to be accepted by the existing Avengers, like Iron Man did. But through her skills and determination, she gradually wins them over and becomes an important part of the team.
In a fanfiction scenario, Tony Stark could be hurt emotionally. For example, if there's a rift in the Avengers team and some of his closest friends turn against him. This could lead to him isolating himself and getting into a downward spiral of self - doubt and pain, which is really interesting to explore in fanfiction.
Another idea for this fanfiction could be that Tony Stark's daughter starts as a sort of 'Avengers - in - training'. She is constantly trying to prove herself to the established members. There could be a lot of action - packed scenes where she is in dangerous situations but manages to use her wits and any skills she has learned from her father to get out of them.
It could be a disgruntled former employee. Maybe someone who felt underappreciated by Stark Industries and decided to take revenge by kidnapping Tony. Another possibility is a new super - villain who wants to make a name for themselves by taking on Iron Man. They see kidnapping him as the perfect way to get attention.
Maybe the story could be about her growing up in the shadow of her famous father. She struggles with the expectations of the world and the Avengers. But then she discovers a unique power within herself that has nothing to do with technology. With the help of the remaining Avengers, she learns to control this power and becomes a hero in her own right. For example, she might have a power related to energy manipulation that she initially fears but later embraces.
One interesting storyline could be Tony Stark leading the Avengers in a battle against a new, powerful alien threat that has technology far beyond Earth's. He'd use his genius to analyze the enemy's tech and come up with strategies on the fly. Another could be him dealing with internal conflicts within the team while still trying to keep them focused on protecting the world. Maybe a member has a personal vendetta against a villain that could put the whole mission at risk, and Tony has to step in as leader to resolve it.
Yes, it's possible that Tony Stark, as a character, could be the subject of Avengers fanfiction that he might 'watch' in the sense of being a character within the fictional scenarios written by fans. However, in the official Marvel universe, there's no indication of him actually reading Avengers fanfiction.