Well, the 'reunion' trope is quite popular. Characters who were separated in their own universes get to meet in the linked universe, often leading to very emotional scenes. There's also the 'discovery of new powers' trope. As they interact in the linked universe, characters may find they have abilities they didn't know about before. And the 'team - up against a common enemy' trope, where characters who might not have worked together in their original universes join forces to fight a threat in the linked universe.
A common trope is the 'culture clash'. When characters from different universes come together in the linked universe, they bring their own cultures, which can lead to interesting interactions and misunderstandings. Then there's the 'mysterious guide' trope, where a character appears to help the others navigate the linked universe. Also, the 'redemption' trope can be seen, where a character who was considered a villain in their own universe has a chance to be redeemed in the linked universe.
Well, the 'team - up' trope is quite popular. Imagine Batman and Sherlock Holmes working together to solve a mystery that spans across their respective universes. Then there's the 'love - across - universes' trope. Characters from different universes fall in love, which creates a lot of interesting drama and conflict, especially when they have to deal with the differences in their worlds. And the 'lost - in - a - new - universe' trope where a character has to find their way back home while navigating the strange new rules and inhabitants of the crossover universe.
One popular trope is 'enemies to lovers'. In many fanfics, two characters who initially dislike each other gradually fall in love. Another is 'the chosen one' trope, where a character is singled out for a special mission or power. 'Soulmate' trope is also common, where characters are fated to be together in some way.
Ganondorf can be a very popular character as well. He is the classic antagonist in the Hyrule series. In linked universe fanfiction, he could be the mastermind behind the new threats that the Links have to face, or perhaps a more complex, redeemed version of himself that adds an interesting twist to the story.
One popular trope is the 'alternate universe' where the Avengers' story unfolds in a completely different setting or with different character dynamics. Another is the 'character redemption' arc, like when a villain - like character tries to become good. And of course, there's the 'team - up against an overpowering foe' trope which is classic in Avengers fanfics.
One popular trope is 'enemies to lovers'. In Sterek fanfic, Derek and Stiles start off not getting along but gradually fall in love. Another is 'soulmates'. Fans like to write about them being fated to be together. 'Hurt/comfort' is also common, where one of them gets hurt and the other takes care of them.
Well, the 'celebrity crossover' is quite popular. It could be a story where actors from different movies or shows interact in a completely new scenario. For instance, characters from a superhero movie meeting characters from a horror movie in a fanfic. Also, the 'backstage drama' trope is often used. This involves creating stories about the behind - the - scenes chaos, relationships, and rivalries in Hollywood. And then there's the 'time - travel' trope where a character goes back in time to change something related to their Hollywood career or a movie's production.
One popular trope is 'Soulmate AU'. In these stories, Dean and Castiel are fated to be together as soulmates. Another is 'Hurt/Comfort', where one of them is injured or in distress and the other provides comfort. 'Alternate Universe' is also common, like a high school AU where they meet in a completely different setting than the show.
Some popular tropes include the 'power - up' trope. This is when a character gains new powers or abilities and has to learn to control them. Also, the 'unlikely alliance' trope is quite common. It involves characters who would never team up in the original story coming together for a common goal. And of course, the 'love triangle' trope, which adds a lot of drama as one character is caught between two potential love interests.
One popular trope is 'enemies to lovers'. In klance fanfic, Keith and Lance often start off as rivals, constantly bickering and competing. Another is 'hurt/comfort', where one of them gets injured or is in emotional distress and the other is there to support and heal them. And 'soulmate AUs' are also common, where they are fated to be together in some supernatural way.
One popular trope is the 'first kiss' scenario. It's often filled with anticipation and nervousness. Another is the 'kiss in the rain', which adds a very romantic and dramatic touch. And the 'unexpected kiss' can also be a common one, where the characters are caught off guard by the sudden display of affection.