Sasuke could fit in as a stealth and combat expert. His ability to move silently and strike quickly would be valuable. He could also use his sharingan to analyze threats and come up with strategies.
Shazam could fit into the Avengers by being the young, enthusiastic addition. His powers are on par with many of the Avengers, so he could contribute in battles. For example, his flight ability could be useful for scouting or quick attacks. He could also bond with the younger - at - heart Avengers like Spider - Man, if he were in the team. His moral compass could also help keep the team on the right track when making difficult decisions.
In fanfiction, he could fit in through his values. Superman has a strong sense of justice and morality, which would align well with the Avengers' goals. He could also form friendships with the members, like a bromance with Thor due to their similar god - like statuses.
Well, Will Solace could potentially be a healer in the Avengers fanfiction. His skills in treating the wounded could be really useful. He could patch up the Avengers after their battles, much like how he does in his original series. Maybe he'd be a bit out of place at first with all the high - tech and super - powered stuff going on, but his kind heart and medical expertise would soon make him an important part of the team.
She could fit in as a specialist in the supernatural. The Avengers often deal with high - tech threats, but Buffy's expertise in the world of demons and magic would be a fresh addition. She could be the one to handle the more 'creepy - crawly' threats that the Avengers might not be fully equipped for.
In fanfiction, Godzilla could be a protector of the Earth in a different way than the Avengers. The Avengers protect the people from threats, while Godzilla protects the balance of nature. So, when an alien race starts to mine the Earth's core in a way that disrupts the planet's stability, Godzilla appears. The Avengers at first misunderstand Godzilla's intentions. But as they see the real threat, they join forces with Godzilla. Godzilla's size and strength would be a huge asset against the technologically advanced alien invaders. The Avengers could also learn from Godzilla about the Earth's natural defenses.
He could use his invisibility cloak for stealth missions with the Avengers.
Percy could fit in as a strategist. His experience in dealing with various gods and monsters gives him a unique perspective on handling threats. He might suggest different approaches that the Avengers haven't thought of before, like using the environment in a more creative way, similar to how he uses water in his battles as a demigod.
She could bring her unique Amazonian skills. For example, her combat skills are extraordinary. She could teach the Avengers some new fighting techniques. Also, her lasso of truth could be useful in interrogating villains in the Avengers universe.
Magnus could fit in as a sort of magical consultant. His knowledge of Norse magic and the Nine Worlds could be invaluable when the Avengers face threats with a magical origin. For example, if they encounter a dark sorcerer from the Norse realms, Magnus would know how to counter their spells.
One way Desmond Miles could fit into the Avengers universe in fanfiction is through his Assassin's Creed skills. He could be a covert operative, using his stealth and combat abilities to assist the Avengers on secret missions. For example, infiltrating enemy bases undetected.