Naruto himself is often very popular in these fanfictions. Since he's the main character of the original Naruto series, fans like to explore how he would interact with Osmosian elements. Sasuke is also a common choice. His powerful abilities and complex personality make him an interesting character to incorporate into the Naruto - Osmosian crossover. Another popular character could be Kakashi. His wisdom and wide range of jutsu could lead to some really interesting scenarios when combined with Osmosian powers.
Well, in Naruto Osmosian fanfiction, a cool concept could be the idea of Osmosian - like transformations for Naruto characters. Picture Naruto taking on an Osmosian form that gives him enhanced physical abilities and new powers related to Osmosian traits, such as the ability to absorb and manipulate certain substances. Also, there could be a concept where the Sharingan or other dojutsu in Naruto interact with Osmosian powers in unexpected ways, like being able to see the flow of Osmosian energy and use that knowledge in combat.
The Avengers originated in Marvel Comics. Marvel has developed a vast universe of characters and storylines, and the Avengers are a key part of it. Their adventures have been adapted into various forms of media, including movies and TV shows.
Captain Marvel is Carol Danvers. She gained her powers through an interaction with alien technology and has become a powerful hero in the Marvel universe.
Marvel justifies Marvel Comics 1000 by presenting it as a celebration of their rich history and a platform to introduce fresh and exciting story arcs. It could also be a strategic move to attract new readers and reignite the passion of long-time fans.