Steve Rogers would be very skeptical at first. But as he sees Loki being vulnerable while being taken care of, he might start to understand that Loki is a product of his upbringing and circumstances. This could lead to a more empathetic view from Steve. Clint Barton, who has his own grudges against Loki, might be the last to come around. However, if Loki shows genuine change, it could transform their relationship from one of enmity to a cautious friendship. Natasha, being the perceptive one, could be the bridge between Loki and the rest of the Avengers in terms of building new relationships.
The relationship between Loki and Bruce Banner could be interesting. Banner might be initially afraid of Loki's presence. But as Loki is being taken care of, he could see that Loki is also a being with his own fears and insecurities. Loki, on the other hand, might be intrigued by Banner's struggle with the Hulk. This could lead to a unique bond where they understand each other's internal battles. And overall, the Avengers as a group would have to reevaluate their stance on Loki, and this would change the dynamics within the team as well as their relationships with Loki.
Thor's relationship with Loki would likely become more complex. He'd be glad his brother is being cared for but also worried about Loki's true intentions. The Avengers, like Tony, might start to see Loki as more than just a villain. They could develop a begrudging respect for his intelligence. For Loki, he might start to feel a sense of belonging, which is something he's never really had. This could soften his attitude towards the Avengers.
One possible plot could be that the Avengers find a weakened Loki after a battle. They decide to take care of him not out of trust but to keep an eye on him. Thor is conflicted as he wants to believe his brother can change. They nurse Loki back to health, and during this time, Loki starts to see the Avengers in a different light, leading to some comical and heart - warming moments as he tries to fit in without losing his mischievous charm.
They show him kindness and try to understand his motives. They offer support and help him find a better path.
His relationship with Thor would likely become more strained. Thor might not understand what's happening to Loki at first and think he's up to some new scheme. With the other Avengers, Loki might become more withdrawn as he tries to deal with his situation privately.
Thor could be one of the first to take care of Loki. Despite their differences, Thor still cares about his brother. He would use his strength to protect Loki from any threats while Loki is sick and might even search for rare remedies.
For Steve and Bucky, if Bucky starts speaking his native language more often in the fanfic, it could strengthen their bond as it harks back to their old days. However, it might also make it harder for new members of the Avengers to fully understand their dynamic. Natasha and Clint might use their respective first languages (Russian and American English) to communicate in a more covert way during missions, which could make their relationship seem more exclusive to the rest of the team.
There's a fanfic called 'The Loki - Avenger Alliance'. In this story, Loki is forced to team up with the Avengers due to a common threat from another dimension. It's full of action scenes and interesting dialogues between the characters, especially Loki's sarcastic remarks which are really in - character.
In many such fanfics, the Avengers might find Loki through various means. Sometimes it could be intelligence they gather about the location where he is being tortured. For example, they might intercept a message from Loki's captors or notice some strange energy signatures that lead them to the place.
In fanfics, the Avengers can take care of Peter in many ways. They could share their own experiences with him. Thor could talk about his battles and how he overcame difficulties, which would inspire Peter. They can also help him with his identity as a superhero. Maybe Doctor Strange uses his magic to show Peter different versions of himself and how to choose the right path. And of course, they can just be there for him as friends, having movie nights or sharing meals together.
In a Truth or Dare Avengers and Loki fanfic, there could be a really funny scene where Loki is dared to transform into Captain America and do his patriotic speech in a comical way. It would be hilarious to see Loki's take on Steve Rogers' serious moments.
One common theme is redemption. Since Loki has done a lot of bad things in the original stories, many fanfics focus on him trying to make up for his past actions and gain the trust of the Avengers. Another theme is family, especially his relationship with Thor which often plays a big part in the stories. Power is also a theme, like how Loki's magic can be both a threat and an asset to the Avengers.