In some fanfics, a deaged Captain America might have his memories intact. This could lead to a really interesting plot where he tries to prevent certain events from happening again. He could use his knowledge of past threats to stop new ones before they start, all while dealing with the challenges of being in a younger body.
You can try Archive of Our Own (AO3). It has a large collection of fanfics, and you can easily search for 'Captain America deaged' within its search bar. Many writers post their works there, so you're likely to find a variety of different takes on the concept.
There could be a fanfic where Captain America's wife is from a different time period. For example, she's a modern - day scientist who somehow gets transported back in time and falls in love with him. This would bring a lot of interesting cultural clashes and plot twists.
There could be a fanfic where the injections are the starting point for a new kind of adventure. Maybe the formula in the injections was actually a prototype for something much more powerful, and Captain America has to race against time to stop it from falling into the wrong hands. He might team up with some unlikely allies in this journey.
One interesting Captain America death fanfic could be one where he sacrifices himself to save the entire universe from an ultimate threat. In this fic, his death becomes a symbol of hope and inspiration for the remaining heroes.
There might be a fanfic where Captain America reflects on his relationships. He could have heart - to - heart conversations with Bucky about how things have changed and how they can move forward. It might also explore his feelings for Peggy in the new timeline he created.
A great time travel fanfic idea could involve Captain America going to different points in time to recruit versions of his allies from various timelines. He could bring together a super - team of different - era Avengers to fight a threat that spans across all of time. This would be full of interesting character interactions and unique battle scenarios.
Their different personalities. Captain America is the idealistic hero, while Black Widow is more of a complex, morally grey character. This contrast can create a lot of interesting dynamics in a relationship in fanfics.
Well, it depends on what you consider 'good'. There are some that focus on the action aspect, like Captain America using his werewolf abilities to fight against new and powerful enemies. Others might be more character - driven, delving into how Steve Rogers copes with being a werewolf and how it affects his relationships with his team members.
Yes, there are some popular ones. Some focus on the aftermath of the injections in a more character - driven way. They might show how Captain America's relationships with his friends and comrades changed because of his new - found powers.
One interesting scenario is when Captain America uses Mjolnir to fight Thanos. In some fanfics, he combines his shield with the power of Mjolnir to create a more powerful defense and offense. It's really cool to imagine him using the hammer's lightning along with his combat skills.