One great plotline could be Natasha and Steve teaming up in a covert mission during the events of Infinity War that wasn't shown in the movie. They might discover a hidden weakness of Thanos and try to exploit it. Another could be a story focused on their relationship development in the midst of the chaos of the war, like how they support each other through the tough decisions they have to make.
In certain fanfictions, a really interesting plotline could be Natasha and Steve having to deal with an internal conflict within the Avengers caused by the events of Infinity War. For example, some members might want to take a more aggressive approach while others, like Natasha and Steve, prefer a more strategic and cautious one. This could lead to a lot of drama and tension within the group, while also showing their leadership skills and loyalty to each other.
Often, they're portrayed as very close friends with a deep understanding of each other. They trust one another completely and are always there to have each other's backs in dangerous situations.
A popular one could be 'Bucky and Natasha: Infinity War Redemption'. In this fanfiction, they both see Infinity War as a chance to redeem themselves for their past actions. Bucky wants to make up for his time as the Winter Soldier, and Natasha feels she needs to prove herself after all her morally grey deeds. Together, they embark on a journey that changes the course of the war in unexpected ways.
A popular one is 'Shifting Allegiances'. It's a well - written fanfiction that explores the dynamic between Steve and Natasha. The author does a great job of portraying their inner thoughts and how they interact with other characters in the context of the Civil War.
One possible plotline could be Bucky's internal struggle as he remembers Natasha. Maybe he has memories of a mission they were on together before his mind was messed with. He could be conflicted about his feelings for her now that he's back to his senses, especially with Steve also having a connection to Natasha.
A lesser - known but really interesting fanfic is 'Natasha and Wanda's Infinity War Journey'. It tells a story of them finding out about each other's pasts during the war. It's a more character - study - type of fanfic, exploring their personalities and how they grow closer as they face the common enemy of Thanos.
One great Natasha and Steve married fanfiction is 'Our New Beginning'. It beautifully portrays their life after marriage, showing how they adjust to living together and handling the challenges of being a super - couple. Another is 'Married Life of Nat and Steve' which focuses on their more domestic moments, like cooking together and sharing stories from their past missions.
One interesting storyline could be Natasha leading a covert mission during Infinity War in the fanfiction. Maybe she's trying to gather intel on Thanos' movements before the big battle. This could involve her using her spy skills to infiltrate some of Thanos' minions' hideouts.
The theme of hope also pops up. Despite the doom and gloom of Infinity War, Bruce and Natasha in fanfictions can be a source of hope for each other. They might find small moments of victory or connection that give them the strength to keep fighting against Thanos and his forces. Their relationship can be seen as a glimmer of hope in the otherwise dark events of Infinity War.
The theme of sacrifice also often appears. Given that they are in the middle of a war, there are times when they have to make difficult choices. They might sacrifice their own safety or even their own identities to achieve a greater goal for the war effort. Their 'ghost - like' existence sometimes means they are willing to disappear completely if it means victory.
One great 'Avengers Steve and Natasha fanfiction' is 'The Red and the Blue'. It beautifully explores their relationship in the context of their Avengers duties. The author does a wonderful job of showing their mutual respect and the unspoken connection between them.