One key element is Jarvis's intelligence. He uses his vast knowledge and ability to analyze data to predict threats to Tony. Another is their relationship. It's often shown as a deep bond where Jarvis is not just a servant but a true protector. And of course, the threats themselves, which can range from business rivals trying to harm Tony to super - villains out for revenge.
One great 'Jarvis protects Tony' fanfiction is 'The Sentinel by the Side'. In it, Jarvis uses his advanced technological capabilities to fend off various threats to Tony. Another one could be 'Jarvis: Tony's Unseen Shield' where Jarvis anticipates danger and acts swiftly to keep Tony safe. There are also some on platforms like Archive of Our Own that might be worth exploring.
I really like 'Jarvis' Insights'. It delves into how Jarvis might view Tony from his unique perspective as an AI. It has some really interesting moments where Jarvis tries to understand human emotions through Tony, and there are some great dialogues between them that are both humorous and thought - provoking.
The unique relationship between Jarvis and Tony is a big factor. Jarvis is Tony's AI but also a sort of companion. Fanfiction allows writers to explore this relationship further, like how they interact on a daily basis, or how Jarvis might react to Tony's crazy ideas.
One interesting storyline could be Jarvis helping Stark in creating a new type of Iron Man suit. Jarvis' knowledge and Stark's creativity would make a great combination for this. Another could be a story where they face a major threat together, with Jarvis providing crucial intel and Stark using his tech to fight it off.
I think in many fanfictions, the character of Tony Stark stands out. His charisma, his sense of humor, and his determination are really well - captured. And Jarvis is also very well - written in terms of his calmness and his unwavering support for Stark. He's like the voice of reason in many stories, which makes him a very interesting character.
If Tony managed to prevent the attack, it could have led to Ultron being defeated more easily. Maybe Jarvis would have been able to assist in countering Ultron in a more effective way. Who knows, it might have even avoided the whole superhero team having to go through such a tough battle.
Another plot could be that Jarvis, in his human form, discovers a long - hidden secret about Tony's past. This secret could potentially change their relationship. He has to decide whether to keep it hidden or reveal it to Tony, and this internal struggle forms the core of the story.
A frequent plot device is Loki's change of heart. He might start out not caring much about Tony, but then something happens. It could be that he realizes Tony's importance to the world or to a particular mission. And then there's the whole 'fish - out - of - water' situation for Loki in Tony's world. Loki has to navigate the high - tech environment of Stark Industries while protecting Tony, which creates some interesting scenarios.
A common plot element is that Peter discovers a threat against Tony, often using his spider - sense. Then he takes it upon himself to stop the threat. Another element is Peter's internal struggle between his own safety and his loyalty to Tony. For example, he might be afraid of facing a powerful enemy but still chooses to protect Tony.