One great Avengers protect Loki fanfiction is 'Loki's Redemption'. In this story, the Avengers realize Loki has been misjudged. They see that his actions were often a result of being manipulated. Thor takes the lead in protecting his brother from other threats, while Iron Man uses his tech to keep Loki safe from various Asgardian and earthly enemies. It's a really interesting take on the characters.
I really liked 'Protecting Loki: The Avengers' Duty'. It shows how the Avengers gradually change their perception of Loki. Hawkeye, for example, initially distrusts Loki but then realizes that they need to protect him. The fanfic is full of emotional moments, like when Loki reveals his past traumas. The Avengers' decision to protect him becomes not just about the greater good but also about personal growth and forgiveness.
There's 'Avengers: Loki's Shield'. This fanfic focuses on how Black Widow and Captain America come to understand Loki's situation. They start to protect him when they discover that Loki holds the key to preventing a greater evil. The story has some great action scenes where the Avengers fight off enemies who want to get to Loki. It also delves into the complex relationships between the characters.
There's a fanfic called 'Loki's Redemption in Thor's World'. This one focuses on Loki trying to find his place in Thor's world after all the chaos he has caused. It shows his struggle to be accepted and how Thor is gradually coming to terms with having Loki back in his life. The writing style is engaging and really makes you feel for both characters.
The fanfiction can also be about redemption. Loki getting protected by the Avengers can be the start of his journey to make up for his past wrongs. It gives hope that even the 'villains' can be redeemed and find a place among the heroes, and this theme is always interesting in the world of superhero stories.
A popular one is 'Thor and Loki: Brothers United in Battle'. This fanfic focuses on the bond between Thor and Loki. It shows how they work together to face a new threat that is even greater than the ones they've faced before. The story has a lot of character development for both of them. Loki uses his cunning to outwit the enemy, while Thor uses his strength. It's a great read for those who love to see the dynamic between these two brothers within the Avengers universe.
I really like the fanfiction titled 'Loki's Role in Avengers Assemble'. In this story, Loki is forced to work with the Avengers against a greater threat. It's full of action and interesting character dynamics. There's also 'Loki's Secret Mission with the Avengers' where Loki has a secret mission that only he can do, but he has to cooperate with the Avengers. And 'The Avenger - Loki' which gives Loki a more heroic role within the Avengers Assemble universe.
One great Loki's sister fanfiction could be 'The Enigmatic Sister'. In this fic, Loki's sister has her own unique powers and she gets involved in the Avengers' affairs in a very unexpected way. She teams up with Thor at one point to try and bring Loki back to the right path. It has a great mix of action and character development.
I really liked 'Avengers and the Young Trickster'. In this fanfiction, Kid Loki is brought to the Avengers' headquarters by some magical accident. His presence is a shock to everyone, especially Tony Stark who is both intrigued and cautious. The story then unfolds as they try to figure out how to send him back to his own realm while also dealing with Kid Loki's attempts to gain power within the Avengers' world. It has some great character interactions.
There's a fanfic titled 'Loki's Beloved'. In this story, the author creates a very strong and intelligent female character as Loki's wife. The story is filled with political intrigue as she tries to navigate the complex Asgardian society and also her relationship with Loki. It's a great read for those who like in - depth character studies.
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.
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.
If 'this' is a superpower, it can be used directly to defend the Avengers. For instance, if it's a power of invisibility, the holder can use it to spy on the enemies and prevent surprise attacks on the Avengers.