Who could be good characters to pair with evil Kaneki in a crossover fanfiction?

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.

Luffy from One Piece could also work well. Luffy's carefree and optimistic nature against Gajeel's more serious and gruff personality would create an interesting dynamic. Maybe they're on a quest to find a powerful treasure in a new world created by the crossover.

Superman could be paired with Obito in a crossover. Superman's pure - heartedness and incredible powers could influence Obito. They could work together to protect a city under threat. Obito might be in awe of Superman's abilities at first but then find ways to contribute with his ninja techniques.

In a crossover with the Fate series, Saber could be paired with Toguro. Saber's sense of honor and her noble fighting style would clash with Toguro's brute force and underhanded tactics. It would create a really interesting dynamic, whether they are on opposing sides or forced to work together for some greater purpose.

In a crossover with the Naruto universe, Sasuke could be a great character to pair with Illumi. Both are somewhat dark - natured and highly skilled. They could start off as enemies, with Illumi seeing Sasuke as a target or a rival in power, but then gradually develop an understanding or a strange alliance as they realize they have common goals in terms of seeking power and revenge in their own ways.

The Punisher would be a great character to pair with Rorschach. Both are anti - heroes who take extreme measures to combat crime. They could have an interesting dynamic, debating the morality of their actions while on a mission to take down a powerful criminal syndicate.

Vegeta would be a great choice. Their rivalry in the original Dragon Ball series could be taken to a whole new level in a crossover setting. Another good character could be Trunks. Since Goku Black has a connection to Trunks in the main story, it would be interesting to see how they interact in a different scenario.

Lara Croft would be an interesting character to pair with Handsome Jack. She's a strong - willed and adventurous archaeologist, and her no - nonsense attitude would contrast with Jack's over - the - top personality. Their interactions could involve Jack trying to steal some ancient artifact that Lara is protecting, leading to a battle of wits and skills.

Arya Stark from 'Game of Thrones' could also work. It would be a very different kind of crossover. Arya's skills as an assassin could be compared to Galen Marek's combat abilities. They could find themselves in a situation where they need to rely on each other's skills in a strange new world that combines elements of both their universes.

Lucy Heartfilia could be paired with Zancrow. She has a different set of abilities and a more diplomatic personality. Her interactions with the hot - tempered Zancrow could lead to some interesting character development for both. She might try to reason with him or use her celestial magic in unexpected ways against his fire attacks.