A different plot could be that Iron Maiden is on a world tour when they accidentally stumble upon an alien technology that the Avengers are also after. This technology is the key to stopping an impending alien invasion. The two groups then have to work together, with Iron Maiden bringing their creative thinking and the Avengers their combat skills, to figure out how to use the technology and save the world.
You can try fanfiction websites like Archive of Our Own (AO3). It has a vast collection of fanfictions from various fandoms, including those that combine Iron Maiden and the Avengers. Just use the search function and type in relevant keywords.
One way to combine them could be to create a multiverse - type story. Imagine Iron Maiden being a band that exists in both the Marvel Universe of the Avengers and the wizarding world of Harry Potter. The Avengers could be on a mission that somehow leads them to Hogwarts. Maybe they need to find a magical object that is hidden there to defeat a powerful enemy. And Iron Maiden's music could be the key to unlocking some hidden magic or power within the school. It would be a wild and creative crossover.
A fanfiction idea could be that the members of Iron Maiden are secretly wizards from the Harry Potter world who have been living in the Muggle world all this time. They get called back to Hogwarts when a threat emerges that is connected to the Avengers' enemies. They use their music as spells and team up with the Avengers to fight the combined threat. For example, their guitar riffs could be like magic bolts that can stun enemies.
One popular theme is alternate universes. Writers like to explore what would happen if certain events in the MCU went differently, like if Iron Man didn't build the first Iron Man suit. It gives a whole new perspective on the characters.
A really cool fanfic is 'Iron Man's Redemption'. In this story, Tony has to face the consequences of some of his past actions and tries to redeem himself while also dealing with new threats to the Avengers. It delves deep into his character.
One great 'Avengers Iron Woman Fanfiction' is 'The Iron Woman's Ascent'. It has a really engaging plot where Iron Woman is portrayed as a powerful force within the Avengers. The character development is well - done, and it shows her interactions with other Avengers members in a very interesting way.
One great 'Avengers Iron Man Fanfiction' is 'The Iron Avenger's New Tech'. It shows Iron Man creating some amazing new gadgets that help the Avengers in a really unique way. The character interactions are really well - written too.
The placement of the Avengers in Iron Man 3 fanfiction can be all over the place. It could be that they show up to assist Iron Man, or they might be off on their own missions and only mentioned briefly. It all comes down to the imagination of the fanfic writer.
One way could be through a technological fix. Maybe in the fanfiction, some super - advanced alien tech falls into Iron Man's hands. He then uses his genius to integrate it into his suit, fixing any previous glitches or weaknesses. For example, if his power source was running low or unstable, this new tech could provide a more efficient and long - lasting power solution.