Another potential character could be Naruto. Naruto has his own set of ninja powers and a strong will. If he were in a crossover with Vegeta, their different ideologies about power and friendship could clash or they could learn from each other. Naruto's ability to never give up might inspire Vegeta in some ways, or Vegeta's raw power could amaze Naruto.
Maybe Naruto from Naruto could be a crossover character. His ninja skills and Ichigo's combat abilities could create some unique fight scenes. Also, their different ideologies about friendship and power could lead to some great character interactions.
One potential character could be Naruto from the Naruto series. His ninja skills and strong will could create an interesting dynamic with 'godlike gon'. Another could be Goku from Dragon Ball. The comparison of their power levels and fighting styles would be really cool. Also, maybe Light Yagami from Death Note. The clash between 'godlike gon's sense of justice and Light's more morally ambiguous actions would make for an exciting story.
One potential crossover character could be Goku from Dragon Ball. Since Naruto has godlike powers in this scenario, a meeting with Goku, who also has superhuman strength and abilities, would be very interesting. They could have a friendly sparring match or team up against a common enemy.
In a crossover with Fairy Tail, Lucy could be part of Naruto's harem. She is strong - willed and might be attracted to Naruto's godlike power and his kind heart. Also, from the Naruto universe, Hinata would surely be in the harem as she has always had feelings for Naruto.
In this fanfiction, characters like Luffy from One Piece might be involved. Luffy's carefree yet determined nature would contrast with Ichigo's new god - like presence. Also, characters from the Bleach universe itself could have new relationships with Ichigo. For instance, Aizen might see Ichigo's godhood as a threat or an opportunity, leading to a complex plot development.
Another potential character is Harry Potter. His wizarding skills and knowledge of magic could be a contrast to Naruto's ninja abilities. Imagine Naruto in Hogwarts, learning about magic while also showing off his ninja moves. They could also face a threat together, like a dark wizard who is trying to use both magic and chakra for evil purposes.
If it's a crossover with the One Piece world, Blackbeard could be a potential bad guy. His ability to steal Devil Fruit powers and his ambition to become Pirate King could lead to a clash with Gohan. Gohan's pure - hearted nature would be in opposition to Blackbeard's more devious ways, and their battle could be epic, with Gohan's ki powers against Blackbeard's dark powers.
Naruto himself would be a key character. His relationship with Kakashi is a central part of the original story, so seeing how he reacts to an evil Kakashi would be fascinating. Sasuke could also be involved. He and Kakashi have a complex relationship, and an evil Kakashi might try to manipulate Sasuke further for his own dark purposes.
Well, in this type of fanfiction, Hermione could also be an important character, but in a different light. Maybe she tries to stop an evil Harry, or perhaps she is corrupted by him and becomes his accomplice. Other characters like the White Witch from Narnia could be involved. Her icy magic and cold - hearted nature could be an interesting contrast or complement to an evil Harry's powers. And don't forget about characters from other YA dark fantasy series, such as the Darkling from Shadow and Bone, who could potentially cross paths with an evil Harry.
Bulma could be one. She already has a long - standing relationship with Goku in the original series. Another could be Sailor Moon. Her strong sense of justice and powerful abilities would make for an interesting addition. Also, Mikasa from Attack on Titan with her combat skills and loyalty could be part of the harem.