Captain America. He values honor, courage, and justice, which are all qualities that Robin also embodies. Cap would respect Robin's skills in combat and detective work. They could lead a team together, with Cap providing the strategic leadership on a large - scale battlefront, while Robin uses his stealth and intelligence to gather intelligence and take on enemies from the shadows.
Black Widow. She is a master of espionage and combat. Robin, with his own skills in stealth and hand - to - hand combat, could learn a lot from her. They could work together on a mission that requires infiltration and gathering information. Black Widow would also be able to teach Robin some new combat moves and techniques, while Robin could show her some of his unique ways of getting around in a city environment.
One great Avenger crossover fanfiction is 'Avengers and the Justice League'. It's really exciting as it imagines what would happen if the Avengers from the Marvel universe met the powerful heroes of the DC Justice League. The story is filled with epic battles and interesting character interactions, like Iron Man and Batman sizing each other up, and Thor and Superman having a friendly competition of strength.
Well, in many avengers team fanfictions, Iron Man is often considered one of the best. His high - tech gadgets and sharp wit make him a fan favorite. He can get out of tough situations with his intelligence and the cool armor he has.
The Arrow is sure to be a main character. In addition, Hawkeye would be a crucial character in this fanfiction. Since they both are archers, there could be a lot of interaction between them, like competing or collaborating in archery - related tasks. And of course, Captain America with his leadership skills would also be among the main characters to lead the team that now includes the Arrow.
Obviously, the Avengers members like Iron Man, Captain America, etc. And the Warrior 3 which include Fandral, Hogun and Volstagg.
I think Sakura would team up well with a healing - type Pokegirl. Sakura is a medic - ninja in Naruto, and a Pokegirl with healing abilities, like Chansey, would be a great partner. They could both take care of the injured during battles and adventures. And Sakura could also learn some new techniques from the Pokegirl's unique healing powers, while the Pokegirl could learn some basic self - defense ninja moves from Sakura.
One idea could be to cross the Avengers with the characters from Harry Potter. Imagine Iron Man trying to figure out how to use a magic wand, or Thor comparing his hammer to a magic broomstick. Another idea is to crossover with the Star Wars universe. Captain America leading the Rebel Alliance against the Empire would be really cool.
The fanfic 'Avengers meets the Fantastic Four' is also good. It plays on the similarities and differences between the two groups. The scientific genius of Reed Richards in the Fantastic Four is contrasted with Tony Stark's in the Avengers. And there are some hilarious exchanges between the more humorous characters like the Thing and Hulk. They also team up to face a threat that neither group could handle alone.
The central character would be the Avenger of Shinjuku. But also, there could be characters who are the Avenger's former allies or enemies from their past. In Shinjuku, we might see some ordinary citizens who get caught up in the chaos caused by the Avenger. There could also be other Servants who are in Shinjuku for their own reasons, such as seeking power or fulfilling a personal quest, and end up interacting with the Avenger.
Yang and Johnny Cage would be a likely pair. Yang is brash and confident, and Johnny Cage is full of himself and loves the spotlight. They could have some really fun banter while fighting together. Yang's brawler style could complement Johnny Cage's martial arts and showbiz - influenced fighting style. Also, they could both learn from each other's different combat cultures.
Hal Jordan from Green Lantern and Iron Man from Marvel would be a great team - up. Hal is a fearless test pilot turned Green Lantern, and Iron Man is a brilliant inventor. They could combine their skills in combat and technology. For example, Hal could use his ring constructs to assist Iron Man in creating new and more powerful armors, while Iron Man could help Hal upgrade his ring's capabilities with his advanced tech knowledge.