One popular theme is friendship. The OC might start as a stranger to Steve Rogers but then they form a strong bond through various adventures. Another theme is romance. Many fanfictions explore the relationship between Steve and the OC, from the initial attraction to the development of deeper feelings. And there's also the theme of self - discovery. The OC could be on a journey to find out who they are while being involved with the Avengers, and Steve might play a role in that discovery.
Another common plot is a time - travel related one where the OC and Steve Rogers are sent back in time together. This could lead to all sorts of adventures, like them having to blend in with the past while also trying to figure out how to get back to their own time. Maybe the OC has some knowledge of history that helps Steve, who is already familiar with the past, in a new way.
The OC should have a unique backstory that ties into the existing Avengers lore. For example, if the OC has powers, their origin could be related to an event in the Marvel universe. Also, their personality should complement the Avengers. If they're too similar to Steve Rogers, it might be boring. So, they could be more carefree while Steve is more serious. And they should have a clear motivation, like wanting to protect the world or seeking revenge for a past wrong, that aligns with the Avengers' overall goals.
One great Steve Rogers Avengers fanfiction is 'The Captain's Heart'. It beautifully explores Steve's character post - Avengers events. It delves into his relationships with his teammates in a very realistic way. Another good one is 'Steve Rogers: A New Era'. This fanfic takes Steve into new and exciting adventures, while still staying true to his core values. And 'Avengers: Steve's Redemption' is also worth reading. It shows Steve dealing with the consequences of his actions in a really engaging manner.
First, give your OC a unique backstory. For example, if they're from a small town that was affected by one of the battles in the Avengers universe. This will shape their motivation. Second, define their powers clearly. If they have super strength, explain how it's different from Steve's. Maybe it's more mental - based super strength where they can resist mind control better. Third, consider their personality traits. They could be really headstrong but also have a soft side. This will make them more three - dimensional.
You could have them interact in non - combat situations too. Maybe the OC is homesick for her Arendelle - like world, and Steve tries to comfort her. They start to open up to each other, sharing their pasts. The OC tells Steve about her struggles with her powers, and he shares his story of being a man out of time. This deepens their connection.
One idea could be that the OC, who has powers similar to Elsa from Frozen, joins the Avengers. She and Steve Rogers initially clash due to their different leadership styles. But as they face a common enemy, they start to understand and respect each other. Maybe the OC can freeze the bad guys in place while Steve leads the charge to take them down.
There's a fanfic called 'Soulbound to Steve'. In this one, the OC is from a different era but still manages to be Steve's soulmate. It's interesting because it shows how their different backgrounds and experiences come together. It has some really heart - warming moments as they figure out their connection. It also delves into how Steve adjusts to having a soulmate in the modern world while still holding onto his old - fashioned values.
One common theme is friendship. The OC often forms a deep friendship with Steve, which helps him in different ways, like providing emotional support or being a partner in combat. Another theme is self - discovery. As the OC is in Steve's world, they often learn more about themselves and their capabilities. For example, they might discover hidden strengths while facing challenges with Steve.
I think 'Steve Rogers' Pain' is very emotional. It focuses on the pain Steve has endured throughout his life, from losing Bucky to the various battles he's fought. It really makes you feel for him. And 'When Steve Cried' is also quite moving. It describes a moment when Steve, who is usually so strong, breaks down. It's a story that shows his vulnerability.