Dante from Devil May Cry would be an excellent character to pair with Doomguy. Dante is a stylish demon hunter, and when combined with Doomguy's brute force approach, it would create some really cool action scenes. Also, Samus Aran from Metroid could be a good match. Samus' exploration skills and Doomguy's combat abilities could lead to an interesting story, especially if they are in a shared alien - infested environment.
Solid Snake from Metal Gear Solid could be an interesting pairing. Snake's stealth and tactical skills contrasted with Doomguy's all - out - attack style would make for a unique story. And then there's Geralt of Rivia from The Witcher. Geralt's knowledge of monsters and his use of magic, combined with Doomguy's physical prowess, could result in a very engaging crossover fanfiction.
Gintoki from 'Gintama' could be paired with Shizuo. Gintoki's laid - back yet strong - willed personality next to Shizuo's short - tempered and powerful nature would result in some hilarious and action - filled interactions. And Spike Spiegel from 'Cowboy Bebop' could also be a great partner for Shizuo in a crossover. The cool and collected Spike next to the hot - headed Shizuo would make for an interesting character study and some great action sequences.
Characters like Naruto from the Naruto series could be an interesting pairing. Naruto's positive attitude and his own powerful jutsu could be a contrast to Berserker's darker nature. Also, Captain America from the Marvel Universe would be a good match. Cap's leadership and moral compass against Berserker's more chaotic nature would create an interesting conflict. And for a more fantasy - based pairing, Legolas from The Lord of the Rings. His archery skills and elven grace against Berserker's brute strength would be a great visual and story - wise combination.
Ichigo could also be paired with Light Yagami from 'Death Note'. It would be an interesting clash of ideologies. Ichigo, who fights for justice in his own way, and Light, who has his own warped sense of justice. Their interactions could lead to some really thought - provoking storylines.
Tatsumi from 'Akame ga Kill!' would be a great pair. Tatsumi is a fighter who has a strong sense of justice, and his interaction with Kaneki, who has his own moral struggles as a ghoul, could create an interesting dynamic. They could fight together against common enemies in a crossover world.
In crossover fanfiction, Luke Skywalker would be an excellent character to pair with Darth Revan. Luke's journey from a farm boy to a Jedi Master could contrast with Revan's fall and redemption. Another good choice could be Gandalf from The Lord of the Rings. The clash between Gandalf's wisdom and Revan's Sith - influenced knowledge would be interesting. Also, Shepard from Mass Effect could be a great pairing. Their different approaches to leadership and combat would create an engaging story.
In a crossover with One Piece, Luffy would be an interesting match for Sakura. Luffy's carefree but determined nature along with his stretchy powers could work well with Sakura's more serious and medical - based abilities. They could embark on a journey together in the crossover, facing various challenges and making new friends along the way.
Jack O'Neill from Stargate could be an interesting character to pair with Duncan MacLeod from Highlander. Jack's military experience and sense of humor would contrast well with Duncan's noble and sometimes brooding nature. Another good pair could be Daniel Jackson and Methos. Daniel's thirst for knowledge and Methos' ancient wisdom would make for great interactions.
A cool Doomguy crossover fanfiction could involve him crossing into the Dark Souls world. He'd be this indomitable force in a land of dark and difficult challenges. He could also cross over with the God of War universe. Doomguy and Kratos would make an interesting pair, both being extremely powerful warriors with a lot of anger. And how about a crossover with the Borderlands? Doomguy could run amok in the chaotic world of Pandora, fighting both demons and bandits.
Xander and Harry would be an obvious and great pair. They both have a sense of heroism and a willingness to fight against evil. Xander's more laid - back and humorous nature could balance out Harry's sometimes brooding personality. Another good pairing could be Xander and Hermione. Xander might be in awe of Hermione's vast knowledge, and Hermione could be intrigued by Xander's different way of approaching problems.
Trunks is another good option. His time - traveling experience and sword - fighting skills could add a new dimension to the crossover. He and Xeno Goku could work together to prevent disasters in different timelines.