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.
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.
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.
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.
Ash from Pokemon and Yuya from Yugioh Arc V would be very likely to team up. Ash is known for his adventurous spirit and his love for Pokemon, and Yuya is a skilled duelist with a strong sense of justice. Their combined skills would make them a formidable team. They could learn from each other, with Ash teaching Yuya about the bond between a trainer and Pokemon, and Yuya showing Ash the strategies behind Yugioh duels.
I think Lincoln from The Loud House and Sam from Totally Spies could team up. Lincoln is smart and good at coming up with plans, and Sam is the most level - headed of the spy girls. They could work well together. Also, Lola and Clover might team up. Lola is all about beauty and winning, and Clover is stylish and confident. They could use their charm to distract villains while the others do the more action - packed parts of the mission.
Another great pairing could be Piccolo and Sailor Mercury. Piccolo is the strategic thinker among the Z - fighters, and Sailor Mercury is the brains of the Sailor Scouts. They could work together to analyze the enemy's weaknesses and come up with plans to defeat them. Also, Piccolo's unique abilities like his regeneration and energy blasts combined with Sailor Mercury's water - based attacks and technological skills could make for an interesting combination.
Naruto and Superman would be a likely pair. Naruto has his unwavering willpower and his powerful ninjutsu skills, while Superman has his super strength, flight, and various other powers. They could both inspire each other. Superman could be amazed by Naruto's ability to keep fighting no matter the odds, and Naruto could look up to Superman as a powerful hero. Another good combination could be Batman and Kakashi. Batman is the world's greatest detective, and Kakashi is a highly intelligent and skilled ninja. They could share strategies and techniques in dealing with threats.
Eren and Raleigh would be likely to team up. Eren has his powerful titan - shifting abilities which could be useful in close - combat situations against both titans and Kaiju. Raleigh, with his experience in piloting a Jaeger, could guide Eren on how to better use his powers in coordination with the large - scale technology of the Jaegers. They could form a strong bond as they both have a strong sense of justice and a desire to protect their respective worlds.
I think Naruto and Hiro would be likely to team up. Naruto has his strong will and determination, and Hiro is really smart. Together, they could come up with great strategies in battles. Hiro could use his tech knowledge to enhance Naruto's abilities, and Naruto could teach Hiro about the importance of never giving up.
Iruka and Ducky. Iruka is a teacher in Naruto, and Ducky is an experienced medical examiner in NCIS. They could bond over their love for knowledge and helping others. Iruka could learn about modern medical examination from Ducky, and Ducky could be fascinated by Iruka's understanding of ninja - based education and how it shapes young minds.