Yes, there is. It's an interesting concept that some fans like to explore. However, not all such fanfictions are easy to find. You might need to dig deeper into specific fanfiction communities or use detailed search terms. It could be a really unique take on the characters, with some fics delving into the psychological aspects of such an unorthodox relationship.
One possible plotline could be Thanos trying to win Tony over while still being true to his villainous ways. Another could be Tony using Thanos' feelings to his advantage in a battle.
Yes, there are likely fanfictions out there where Tony kills Thanos. The Marvel universe has a huge fan base, and fans often create alternative storylines. Some might explore this scenario to give a different take on the Infinity War and Endgame stories.
Probably the other Avengers like Captain America. He could play a role in trying to save Tony or in the fight against Thanos that ultimately leads to Tony's death. Maybe Doctor Strange as well. Since he has knowledge of the future and the Infinity Stones, he might be involved in some way. He could either try to prevent Tony's death or his actions could inadvertently lead to it.
In Thanos Tony fanfiction, the theme of coexistence is sometimes present. Despite their differences, they might find a way to coexist in certain storylines. The exploration of their individual traumas is also a theme. Thanos has his own backstory that drives his actions, and Tony has his own set of traumas from his superhero journey. These traumas can shape their interactions in the fanfiction.
In this scenario, it would be a complete shocker. Tony Stark is a hero, and Thanos is a villain. If he were to join Thanos, it might be because Thanos somehow convinced him that his plan was for the greater good. Maybe Thanos showed him a future where overpopulation and resource depletion were so bad that his 'snap' was the only solution. But this would go against everything Stark stands for, so it would be a very complex and dark turn for his character.
In fanfiction, their interactions can also be very tense. Tony might try to use his sarcasm and intelligence to taunt Thanos, while Thanos, with his calm and collected demeanor, would simply brush it off. Sometimes, Thanos might even admire Tony's tenacity in the face of such overwhelming power, which could lead to some interesting exchanges between them.
One common theme is identity. Tony has to figure out who he is with Thanos as his father. Another is the struggle between good and evil. Since Thanos is a well - known villain, Tony has to decide whether to follow in his father's footsteps or be a hero. And power is also a theme, as he may inherit some of Thanos' power.
A common theme is the clash of ideologies. Thanos with his view of 'balancing the universe' and Tony, the defender of Earth. Their different beliefs often lead to intense confrontations and debates within the fanfictions.
One interesting Thanos and Tony Stark fanfiction could be where they have to team up against an even greater threat in the universe. Maybe a new powerful alien race emerges that is set on destroying all life, and Thanos, with his knowledge of different planets and Tony Stark with his technological genius, are forced to put aside their differences. In this kind of story, we might see Tony trying to outwit Thanos at times while also learning from his vast experience in the cosmos.