Well, in 'ohshc crossover fanfiction', a common concept is the fusion of OHSHC with other popular anime worlds. For instance, if they cross over with the world of 'Sailor Moon'. The boys from OHSHC could find themselves in the middle of a fight against the Dark Kingdom while trying to charm the Sailor Senshi. Also, there could be a crossover where the OHSHC members are in a post - apocalyptic world. They would have to use their charm and wits, which are usually used for entertaining guests, to survive and maybe even rebuild society in their own unique style.
Some interesting concepts in 'ohshc crossover fanfiction' include a crossover with a detective - themed universe. The Host Club members could play amateur detectives, using their knowledge of people's desires (from their hosting experience) to solve mysteries. There could also be a crossover with a fairytale world. Imagine Tamaki acting like a prince charming in a world of Cinderella or Snow White. It changes the dynamics of the story and gives a fresh perspective on the characters as they interact with the new settings and characters from the crossover universes.
One interesting concept could be characters from 'Ouran High School Host Club' (OHSHC) being transported to different fictional universes. For example, the Host Club members in a magical world full of wizards and witches. Another concept might be a crossover with a modern superhero universe, where they have to deal with superpowers and save the world in their own flamboyant way. It can also be fun to see OHSHC characters in a historical crossover, like in the Victorian era, adapting their modern personalities to the more formal and strict social norms of that time.
One interesting concept could be Shreck crossing over with other fairytale characters in a modern setting. For example, Shreck meeting characters from 'Cinderella' in a bustling city. It can create humorous and unexpected interactions, like Shreck's gruff nature clashing with Cinderella's elegance.
One interesting concept could be the combination of Ben 10 000's powers with other fictional universes. For example, if he were to cross over with the DC universe, seeing how his alien forms interact with super - heroes like Superman or Batman. Maybe his Four Arms form could have an epic battle with Doomsday.
Well, a lot of fgo crossover fanfiction involves different historical periods colliding. Say, a crossover with the Roman Empire era and the modern day in the fgo world. Servants from different eras teaming up or facing off against each other can create really engaging storylines. Also, crossovers with other JRPGs like 'Final Fantasy' often bring in unique magic systems and character designs that add a whole new dimension to the fgo fanfiction.
Another concept might be a crossover with a superhero universe. Picture the Metalocalypse band members having to deal with superheroes and villains. They could use their music in unexpected ways, like using a powerful guitar solo to stun villains or inspire superheroes in battle.
A third concept could be a crossover with a historical era. Picture Kidomaro in ancient Rome or medieval Europe. He would have to deal with the social norms, different forms of combat, and the overall culture of that time period. This would likely lead to some very unique and engaging storylines as he tries to find his place in a world so different from his own.
In Avatar 2009 crossover fanfiction, a cool idea is a crossover with a post - apocalyptic setting. The Na'vi could be faced with the challenges of a world destroyed by humans in a different way. They might have to deal with new threats and also learn from the survivors of the apocalypse. Also, a crossover with a superhero universe could be fascinating. Picture the Na'vi getting superpowers or having to deal with superheroes coming to Pandora.
One interesting concept could be a crossover with the Men in Black. Imagine the Ghostbusters teaming up with the MIB agents to deal with paranormal entities that are also of alien origin. They would have to combine their different technologies and ways of handling the supernatural and extraterrestrial.
One interesting concept could be the merging of different storylines from 'the surge'. It might bring together characters who don't usually interact in the original, creating new dynamics and plot twists.
One interesting concept could be Renji in a modern world crossover. Imagine Renji trying to adapt to modern technology like smartphones and cars. Another concept might be a crossover with a different anime universe, such as Renji meeting characters from 'Naruto'. He could have some really cool battles or exchanges of fighting techniques with the ninja characters.
One interesting concept could be the combination of different universes. For example, melding the world of Mifune with a fantasy realm. This can bring about unique character interactions where the traits of Mifune characters are contrasted with the magical beings of the other world.