One of the most popular pairings is Goku with Mew. Mew is this mysterious and all - powerful Pokemon. When combined with Goku's power, there are so many possibilities for the story. They could go on adventures together, exploring new dimensions or facing off against powerful villains. Also, Goku and Lucario are often paired because Lucario has a sense of honor and combat skills that can be compared to Goku's martial arts.
Goku and Eevee can be a really cute and interesting pairing in fanfiction. Eevee's ability to evolve into different forms gives a lot of room for creativity in the story. Goku might help Eevee discover its true potential. And then there's Goku and Dialga. Dialga's control over time could create some really complex and exciting storylines when paired with Goku's time - spent training and growing stronger.
Gohan would also be a good choice. As Goku's son, he has his own unique abilities. In a fanfiction, they could enter a father - son gaming tournament. Gohan's intelligence and strategic thinking could complement Goku's brute strength in the game.
Erza would also be a good pairing. She is a very disciplined and strong - willed character. Goku could learn from her discipline, and she could learn from Goku's carefree yet determined attitude. They could fight side by side in battles and protect each other.
Well, obviously Goku Black himself is very popular. Writers often focus on his character, his power, and his motives.
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.
Oliver Queen (Green Arrow) and Black Widow are often paired. Oliver's combat skills with his bow and arrow combined with Black Widow's martial arts and espionage skills make for an exciting duo. They could be on a mission where they need to infiltrate an enemy base and use their complementary skills to succeed.
Often, Naruto and Agent 47 are paired as they are the main characters from their respective universes. Their interactions can be really interesting as they come from such different worlds. Naruto's exuberance and Agent 47's cold, calculated nature create a great contrast.
Often, Naruto himself is a popular character to pair with characters from Ravel's world. His strong will and determination make him an interesting addition to any crossover story. Another popular pairing could be Sasuke from Naruto with a powerful character from Ravel. Their brooding natures and strong powers can create an interesting dynamic.
In crossovers with other shonen series, characters like Luffy from One Piece can be paired with Ichigo. Their different personalities and power sets would create interesting dynamics. Luffy's carefree nature contrasted with Ichigo's more brooding side could lead to some humorous and action - packed adventures.
Rukia is a very popular character to pair with Renji in crossover fanfiction. Their long - standing relationship in the original series makes it interesting to see how they interact in different crossover scenarios. Ichigo is also popular. Given their rival - like relationship in the main story, in a crossover, they could end up as allies against a new common enemy.
Homer and Jiraiya might be a fun pair. Homer loves food and Jiraiya loves women and writing. They could go on adventures together, with Homer being amazed by Jiraiya's ninja powers and Jiraiya being entertained by Homer's simple - mindedness. And they could get into all sorts of trouble, like accidentally stumbling upon a secret enemy base while looking for a good place to eat or write.