Who are the likely characters to be featured prominently in a 'Steven x Gems Harem Fanfiction'?

For Naruto side, Naruto himself is very likely. His determination and growth arc can be interestingly combined with DC elements. Also, Sasuke with his powerful Sharingan could have some cool interactions in the DC universe.

Iruka Sensei could also be a prominent character. He was an important figure in Naruto's early life. In a second - chance story, he might play a role in guiding Naruto in new ways, or perhaps Naruto could use his second chance to repay Iruka's kindness in a more significant manner.

Sasuke would be a likely character. He already has a dark past and a tendency towards brooding and seeking power, which would fit well in a 'world of darkness' setting. Orochimaru is another one. His experiments and his general amorality make him a natural for a darker Naruto story. And of course, Madara Uchiha. His grand and often cruel plans for the ninja world would be further explored in a darker fanfiction.

Obviously, Steven is one of the main characters. And the 'evil' Crystal Gems, which could include characters like Amethyst, Pearl, or Garnet if they are made 'evil' in this fanfiction concept. There might also be other supporting characters from the original series that could play a role, such as Connie, who could help Steven in some way during his encounter with the 'evil' gems.

The plot might involve Steven being in a situation where he has to choose between different Gems in a harem - like scenario. For example, Pearl might offer her intellectual connection, Amethyst her fun - loving nature, and Garnet her stable and powerful presence. Each Gem could have different ways of showing their affection for Steven, and he has to figure out his feelings towards them all while also dealing with the threats to their world.

The characters can vary depending on the specific fanfiction. It might include main characters like Steven, Garnet, Pearl, and Amethyst, or it could introduce new characters created by the author.

Tony Stark could also be a key figure in some fanfics, even though he's no longer alive in the main MCU timeline. His intellect and previous experiences with multiversal - related events (like in Endgame) could be explored in the fanfic. Maybe the Avengers find a way to access his knowledge or even a version of him from another universe to help them out.

Natsu would be a likely candidate. He's always eager for a fight and his reactions to the intense battles in Death Battle would be interesting.

Oracle, or Barbara Gordon. She has a deep connection to Batman, having worked with him in the past. Her intelligence and tech - savvy skills could add an interesting dynamic to the harem. She can be both a source of support and an independent force within the group.

For the Infamous side, Cole MacGrath would be a likely candidate. His powerful electrical abilities would make for an interesting dynamic in the Overwatch universe. On the Overwatch side, Tracer would be a great fit. Her speed and agility could contrast with Cole's more brute - force power. Also, Reinhardt could be involved. His chivalrous and protective nature would be interesting to see interacting with the Infamous characters.