What are some interesting plot ideas for 'Avengers harem fanfiction'?

Maybe the Infinity Stones are scattered across the Harry Potter universe. The Avengers have to team up with Harry Potter and his friends to retrieve them. During this adventure, a love triangle or rather a harem - like situation develops. For example, Harry Potter could find himself in the middle of a relationship with Pepper Potts and Ginny Weasley. They would all need to work together to stop a new dark force that is attracted to the power of the Stones.

A really cool plot idea could be that the Avengers are watching Endgame in a sort of 'alternate reality cinema' where the events in the movie start to bleed into their real world. So they have to stop the movie from fully playing out to prevent chaos in their own universe. This would involve a lot of action and strategic thinking as they try to stop things like Thanos from emerging from the screen while also trying to understand the significance of what they're seeing in the movie.

Perhaps the Avengers mistake one of the Horsemen for a new super - villain. As they engage in battle, they soon realize that the Horsemen is actually after a powerful artifact that a real villain in the Avengers' world has obtained. So they form an uneasy alliance to retrieve the artifact.

Maybe in the fanfiction, the multiverse is collapsing and the Avengers of different universes are brought together by a mysterious force. They find out that an experiment gone wrong in one of the universes has caused this. So they have to travel through different universes, each with its own unique versions of the Avengers and villains. Along the way, they discover new powers and abilities that they can use to try and reverse the damage and save the multiverse.

One interesting plot could be the Avengers facing a new, super - powerful villain made of an unbreakable steel - like substance. They have to figure out how to defeat it without their usual methods working.

One interesting plot could be the Avengers facing an ancient, all - powerful cosmic entity that threatens to destroy all of existence. They have to combine their powers in ways they never thought possible, like Iron Man's technology with Thor's magic.

One idea could be the Avengers facing off against a new, powerful villain who has the ability to turn their own powers against them. This would lead to some really intense battles and strategic thinking on the Avengers' part.

One idea could be exploring the family dynamics when the Avengers have to take care of a young superhero in training. It would be fun to see how they each contribute to the kid's growth, like Tony Stark teaching about technology and Captain America instilling values.

Well, a great plot for Avengers Battleground fanfiction could be a cross - over. Imagine characters from other superhero universes end up on the Avengers Battleground. There could be conflicts between different ideologies of heroism. For example, if the X - Men showed up, they might have different ways of handling the situation compared to the Avengers. Or, perhaps a group of young, inexperienced heroes are accidentally teleported to the Battleground. The Avengers then have to protect them while also fighting the main enemy. Also, a plot where the Battleground itself becomes sentient and starts changing the rules of the fight to test the Avengers would be really cool.

Well, a cool plot for 'Avengers Multiverse Fanfiction' might be that in one multiverse, the Avengers are all villains and in another they are heroes as usual. The good Avengers from our known universe have to find a way to either convert or defeat their evil counterparts. Maybe there's a mysterious force that's causing this flip in morality across the multiverse and the Avengers need to stop it before it spreads further.