Well, Loki could save readers' lives by outwitting the villains. In many Avengers fanfiction scenarios, he has a complex and devious mind. He might predict the moves of the bad guys who are targeting the readers. By doing so, he can set traps or make counter - plans in advance, thus saving the readers. Also, his ability to teleport can be crucial in getting the readers out of harm's way quickly.
In some fanfictions, Loki saves the reader's life when they are trapped in a collapsing building during a super - powered fight. He uses his telekinesis to hold up the debris long enough for the reader to escape. This showcases his more heroic side in the fan - created stories. Another instance might be when the reader is being mind - controlled by an evil force. Loki, with his own experience in mind - games, manages to break the control and save the reader from being used as a weapon against the Avengers.
There are fanfictions where Loki survives Endgame by traveling through different timelines. In these stories, he might encounter alternate versions of the Avengers and himself. For example, he could meet a younger version of Thor from a timeline where he never got banished. This would lead to a whole new set of adventures and interactions that change the course of the events in Endgame.
Thor would be a likely candidate. Since he is Loki's brother, he already has a connection with him. Thor might be the one to convince the other Avengers to give Loki a chance and be the first to reach out and try to befriend him in this new situation.
Future Loki might interact with the Avengers in a cautious way. He knows their past opinions of him and tries to prove himself. He could start by sharing small bits of useful information. For example, he might tell Iron Man about a weakness in a new enemy's technology.
In this fanfiction, Loki might interact most with Hulk. It would be an interesting dynamic as Loki is a master of manipulation and Hulk is, well, the Hulk. Loki could either try to use Hulk for his own purposes, which would be very dangerous, or he could end up on the wrong side of Hulk's anger. But at the same time, it could also lead to some unexpected moments of understanding or at least a begrudging respect between them.
He would probably interact a lot with Thor. Since they are brothers, there is a pre - existing relationship full of complexity. Also, he might interact with Iron Man quite often. Tony Stark's sarcastic nature and Loki's trickery could lead to some really interesting exchanges, either in the form of verbal sparring or working together on some high - tech and magic - combined projects.
Well, Thor might be a bit shocked at first. He'd probably be amused by some of the wilder interpretations of his brother in the fanfiction. Captain America, on the other hand, would likely be confused by the whole concept as it's so different from the traditional stories he's used to. Iron Man would probably make sarcastic comments about how creative the fans are in coming up with these stories.
In these fanfictions, one characteristic is the use of Loki's shape - shifting abilities for comical purposes. He could transform into different Avengers and act in a way that is completely out of character for that person, causing confusion and laughter. Also, the stories often play with the power dynamics among the Avengers and Loki. Loki might try to outwit them in a humorous way, like in a game or a competition. The humor also comes from how the Avengers, who are used to serious threats, deal with Loki's more light - hearted and silly challenges.