Definitely Izuku and William Afton. Izuku is all about heroism and saving people, while William is a devious and manipulative character. Their interactions would be full of tension as Izuku tries to understand William's motives and stop him from causing harm. Another interesting pair could be Bakugo and one of the Afton kids. Bakugo's brash and explosive personality would clash with the more mysterious and potentially menacing nature of the Afton kid.
The interaction between the Afton family's children, such as Elizabeth Afton, and the female Creepypasta characters like Jane the Killer could be really engaging. Elizabeth has her own dark backstory within the Afton family lore, and Jane is a strong - willed and vengeful Creepypasta character. They could either become enemies or find some sort of strange kinship in their shared experiences of being part of a dark and often male - dominated world of horror.
Well, perhaps in this fanfiction, the quirks in the BNHA world start to have an unexpected effect on the Afton family. Freddy Fazbear could gain a quirk that makes him able to control people's minds, similar to some of the mind - control quirks in BNHA. The Afton family then uses this newfound power to try and create chaos in the BNHA world. And the BNHA characters have to figure out how to stop them while also dealing with their own internal conflicts and challenges.
Definitely Harry and Wednesday. Harry is used to the rather normal, if magical, world of Hogwarts, while Wednesday is all about the dark and macabre. Their meeting would be full of contrasts. Harry's sense of right and wrong might be challenged by Wednesday's more amoral view of the world.
The interaction between Naruto and Rukia could be great. Naruto's exuberance and positive attitude could contrast with Rukia's more serious and stoic nature. They could bond over their loyalty to their friends. Maybe Naruto could make Rukia laugh with his silly antics, and Rukia could teach Naruto some of the more refined aspects of combat from the Soul Society.
I think Negi and Iron Man would have great interactions. Negi is a young wizard full of potential, and Iron Man is a genius with his high - tech suits. They could probably learn from each other, like Negi learning about technology from Iron Man, and Iron Man getting inspired by Negi's magic for new suit designs.
TommyInnit and Midoriya would be an interesting pair. Tommy is impulsive and often gets into trouble, while Midoriya is more level - headed and heroic. Midoriya could try to teach Tommy about the values of being a hero, and Tommy could introduce Midoriya to his more carefree and unorthodox ways of doing things.
The interaction between Daredevil and Batman would be really interesting. They both are highly skilled detectives, but Batman has all his high - tech gadgets while Daredevil relies on his enhanced senses. They could compare notes on crime - fighting techniques.
Definitely Damian and Superboy. Superboy has his own issues with identity and control, and Damian's strong sense of self and discipline could either clash or create an interesting dynamic where they learn from each other. Maybe Superboy could teach Damian about the importance of emotions, while Damian could show Superboy some combat techniques.
Sasuke and Zoro could have some cool interactions. They are both very strong and somewhat brooding characters. Zoro might be interested in Sasuke's Sharingan and the power it holds, while Sasuke could be intrigued by Zoro's three - sword style.
I think Axel and Yang would have a cool interaction. Axel with his pyro abilities and his somewhat edgy personality could clash and also bond with Yang, who is hot - tempered and has her own fire - based powers. They could have some great banter and also team up in battles, with Axel using his acrobatic fighting style and Yang using her brawler moves.