One idea could be that the Titans suddenly appear in modern cities. People have to quickly adapt their defense mechanisms, like using modern military equipment against them. Another could be that the Survey Corps' technology is somehow transferred to our world, and we see how modern scientists study and improve it.
Well, you could have a scenario where the main characters from AOT are reincarnated in our world. Eren, for example, could be a normal high - school student but start having strange dreams about his past life as a Titan shifter. Mikasa and Armin could also be reborn, and they gradually discover their past identities and the threat of Titans that might still lurk in some form in this world.
Maybe in the 'AOT in our world' fanfic, the Walls from the AOT world are magically created around certain parts of our world. The people inside these Walls live in a state of fear, not knowing what's outside. And a group of brave individuals, inspired by the Survey Corps, decide to explore beyond the Walls to find out if there are any Titans and, more importantly, if there's a way to break free from this new confinement.
To make your 'AOT in our world' fanfic stand out, focus on character development. Take the AOT characters and put them in situations that force them to change according to our world's values. For example, Levi, who is used to a strict military hierarchy in AOT, could struggle with the more democratic and free - spirited nature of our modern society. You could also introduce new characters from our world who have unique abilities or knowledge that can help or hinder the AOT characters in dealing with the Titan threat.
One idea could be that Naruto characters are transported to the AOT world. Naruto's ninjutsu skills would be a huge advantage against the Titans. For example, his Shadow Clone Jutsu could be used to distract the Titans while the Survey Corps make their moves. Another idea is that the Ackermans have some sort of connection to the chakra system in Naruto. Maybe they can unlock chakra and use ninjutsu, which would completely change the dynamic in the AOT world.
One idea could be that the vampires and werewolves from Twilight have to adapt to a modern world filled with new technology. For example, they might struggle with how to keep their identities secret in a world of surveillance cameras.
There could be various fanfictions. Maybe some that focus on alternative endings, like ones where certain characters survive who didn't in the original. For example, a fanfiction where Erwin survives and leads the Scouts in a different way.
One idea could be that the MC discovers a hidden power within the AOT 2 game world that allows them to communicate with Titans. This could lead to a whole new way of approaching battles and understanding the lore. Another plot idea is the MC getting trapped in a glitchy part of the game where the rules of the AOT world are all jumbled up, like Titans and humans swapping abilities. Or perhaps the MC uncovers a secret conspiracy among the game's non - playable characters that threatens the entire in - game world.
A great idea for an Our Flag Means Death fanfic could be a time - travel one. Imagine if one of the characters travels back in time and has to change something in the past to save the future of their pirate crew. Also, a fanfic about a love triangle between some of the main characters could be really interesting, adding more drama to the already fun and chaotic world of the show. Or perhaps a fanfic that shows what would happen if the pirates had to form an alliance with their worst enemies to survive a common threat.
Another interesting concept is a time - travel fanfic. A character somehow gets sent back in time to the pre - historic era where the dinosaurs actually lived. They have to survive in that world and try to find a way back, while also witnessing the true nature of the dinosaurs without the modern - day park's infrastructure.
A great idea for an 'A Different World' fanfic is to set it during a special event like a college reunion. All the characters come back together, and there are old rivalries reignited, old friendships rekindled, and new secrets revealed. It could also be interesting to explore how the college has changed over the years and how the characters feel about those changes.
The idea of bringing back knowledge from the future is also fascinating. A time - traveler could introduce new technology or battle strategies that were developed later in the story. However, they also have to be careful not to disrupt the timeline too much or cause unforeseen consequences.
It's fairly common. Fans often look for more content related to their favorite shows. Since 'Attack on Titan' has a large and passionate fan base, there are a lot of fanfics available. 'Aot' fans might watch (read) these fanfics to explore different scenarios that the official story didn't cover. For example, they might want to see how a certain character would react in a different situation or what would happen if a major plot event had a different outcome.