Who are the most popular pairings in the Flash and Supernatural crossover fanfiction?

Definitely Barry and Dean. Barry's positive attitude and scientific mind would contrast well with Dean's tough - guy, no - nonsense hunting style. Another interesting pairing could be Iris and Sam. Iris is a strong - willed journalist, and Sam is the more intellectual and empathetic Winchester. And then there's Cisco and Castiel. Cisco's love for creating new tech and Castiel's otherworldly nature would make for some really fun interactions.

One of the most popular pairings is Flash and Batman themselves in a platonic partnership. Fans love to see their different personalities and skills mesh together. Another popular pairing could be Flash with one of Batman's sidekicks, like Robin. The contrast between Flash's super - speed and Robin's acrobatics and detective skills can make for an interesting dynamic.

One popular plot idea is that the characters from Supernatural, like Sam and Dean, end up in the Flash's Central City while chasing a supernatural entity that has some connection to the particle accelerator explosion. Another could be that Barry Allen, as the Flash, somehow gets transported to the Supernatural universe and has to deal with demons and angels. A third idea might be a joint mission where the two teams have to stop a powerful villain who is using both magic from the Supernatural world and advanced science from the Flash's world.

Jason Todd and Sam Winchester is also a well - liked pairing. Sam's more intellectual side can complement Jason's more action - oriented nature. They could be researching together to solve a supernatural mystery. There are also some pairings with female characters from Supernatural. For example, Jason Todd and Jo Harvelle. She's a strong and independent hunter, and a relationship between them could be full of action and adventure, with both of them fighting side by side against the supernatural forces.

Definitely the Flash and Iron Man. Tony Stark's high - tech gadgets and intelligence combined with the Flash's super - speed would make for some really cool scenes. They could work together on building some sort of super - fast vehicle or weapon. Another interesting pairing would be the Flash and Captain America. Steve Rogers' leadership and combat skills along with the Flash's speed could be a great combination for taking on enemies. The Flash could quickly get Steve into strategic positions during battles.

I think Barry Allen and Rachel Berry would make an interesting pairing. Barry is all about saving the day and being a hero, while Rachel is very ambitious and determined in her singing career. They could learn from each other's perseverance. For instance, Barry could teach Rachel about the importance of quick thinking in difficult situations, and Rachel could inspire Barry with her unwavering dedication to her art.

Rachel from Glee and Cisco from The Flash would make an interesting pair. Rachel is very ambitious and talented in music, and Cisco is a tech - genius. They could collaborate on creating some sort of musical - tech device. Maybe Rachel's high - pitched singing could be used to power up Cisco's latest invention, or Cisco could create a device that amplifies Rachel's voice to reach across the city, like a musical - based alarm system.

A very popular pairing is Elsa and Anna from Frozen with other princesses. For instance, Elsa and Anna meeting Rapunzel. Their stories of sisterly love can contrast and complement the relationships of other princesses. Another popular one is Ariel and Belle. Ariel's curiosity about the human world that Belle is so much a part of, and Belle's admiration for Ariel's adventurous spirit make for an interesting crossover. Also, Moana and Mulan are often paired. Moana's connection to the ocean and Mulan's military skills can create some exciting storylines when they cross paths.

One popular pairing could be Naruto and Akane. Since Naruto has a big heart and is always eager to befriend others, he might be able to break through Akane's tough exterior and they could form an interesting relationship.

Tweety and Hello Kitty in a crossover fanfiction can also be quite popular. The cute factor of both characters combined with Tweety's sassiness can lead to some really sweet and funny stories. Tweety might playfully tease Hello Kitty, and they could go on little adventures together in a pastel - colored world.