The crossover between BNHA and Attack on Titan is quite interesting. The titans would be a huge threat in the BNHA world, and the Survey Corps' combat skills could be an inspiration for the BNHA heroes. Also, the BNHA and Naruto crossover is great. Naruto's ninjutsu and his never - give - up attitude would blend well with the BNHA characters. And the idea of sharing chakra or quirks could lead to some really cool storylines.
One interesting crossover could be BNHA with Fullmetal Alchemist. The alchemic principles in FMA are very different from quirks. A character like Edward Elric trying to understand the concept of quirks or a BNHA character attempting alchemy would create an engaging story. Also, the crossover with Bleach. Soul Reapers' powers and the Hollow - slaying aspect would add a new dimension to the BNHA universe, and vice versa with BNHA characters' quirks affecting the Bleach world.
A really interesting crossover is BNHA with One Piece. Luffy's carefree and determined nature would contrast with the more structured hero society in BNHA. His rubber powers would also be a unique addition. Another is BNHA and Harry Potter. Imagine a wizard in the world of quirks, or a BNHA character learning magic. It would be a fascinating mix of two very different magical systems.
Rayla and Aang from Avatar: The Last Airbender would be an interesting crossover. Rayla's skills as an assassin and Aang's airbending and pacifist nature could create some really cool interactions. They both have a strong sense of justice, but approach it in different ways.
One interesting pairing could be Midoriya and Spider - Man. Both are young heroes who are constantly striving to prove themselves and have a strong sense of responsibility. They could learn a lot from each other's experiences and fighting styles.
The crossovers where the powers are combined in unique ways are really interesting. For example, when Iron Man helps design new support gear for the BNHA students using his technology. It's a great blend of the high - tech world of the Avengers and the quirk - based world of BNHA.
One interesting crossover could be the Quirk vs Magic aspect. In many bnha harry potter fanfictions, characters from BNHA like Deku might visit Hogwarts and try to understand magic while the Hogwarts students are fascinated by his Quirk. It makes for a great exploration of two very different power systems.
Tanjiro and Deku would be a great pairing. Tanjiro's strong sense of justice and determination to protect his loved ones is similar to Deku's. They could learn a lot from each other, with Deku showing Tanjiro about quirks and Tanjiro teaching Deku about breathing techniques. Another interesting pairing could be Bakugo and Inosuke. They both have a fiery temper and are very competitive. Their interactions would be full of energy and probably a lot of arguing at first.
In some bnha x fairy tail fanfiction, there could be a scenario where the magic in Fairy Tail is seen as a kind of 'quirk' in the BNHA universe. The Fairy Tail guild members might have to adapt to the rules and regulations of the hero society in BNHA while still using their magic. This could lead to some really fun and creative situations, like Erza trying to get a hero license.
However, All Might also has to be considered. His One For All Quirk gives him superhuman strength, speed, and durability. If he were to face off against Elsa, he could potentially use his physical abilities to break through her ice. But Elsa's power is more versatile in terms of creating different ice formations and manipulating the environment.
The most interesting part is seeing the different power systems interact. Nen from HxH and Quirks from BNHA are so different. For example, how would Gon's Jajanken deal with a villain's powerful Quirk? It creates a lot of unique battle scenarios.
One idea could be that the Hetalia characters suddenly find themselves in the BNHA universe and have to adapt to having quirks. For example, Italy might be really confused at first but then find that his ability to make good pasta could be turned into a quirk related to food creation or manipulation. Another could be that the BNHA characters visit the Hetalia world and are shocked by the different cultures and historical settings. They could learn about different forms of power and leadership from the Hetalia characters.
Maybe the villains from BNHA team up with some of the evil forces in the Overwatch world. Then the combined good guys, including both BNHA heroes and Overwatch agents, have to figure out how to defeat this new, dangerous alliance. It could lead to some really cool battles and character interactions, like All Might facing off against Doomfist.