In some 'Red X DC Fanfiction', Red X could be involved in a time - travel adventure. He might accidentally get sent back in time to when the Justice League was first forming. This would lead to some really interesting interactions as he tries to figure out how to get back to his own time, all while not revealing too much about the future to the heroes and villains of that era.
You can try websites like FanFiction.net. It has a large collection of DC fanfictions, and you're likely to find some good ones about Red X there. Another option is Archive of Our Own (AO3), which also has a variety of fan-created content related to DC and Red X in particular.
One great DC Red X fanfiction could be 'Red X's Redemption'. It delves into his backstory and how he might find a path to being a hero instead of a villain. Another could be 'Red X and the Titans' where he teams up with the Titans in an alternate universe scenario.
Obviously, Red X is a main character. He's the anti - hero with his own set of skills and motives. Batman also often appears as he has a connection to Red X. Their cat - and - mouse relationship is a big draw in these fanfictions. Robin can also be a main character, especially if the story delves into the idea of Red X being related to Robin in some way, like an alternate version or a former partner gone bad.
Not that I'm aware of. Usually, the popular and mainstream DC comic characters are pretty familiar, and Red isn't among them. It could potentially be a very niche or newly introduced character that hasn't gained much popularity yet.
I don't think so. To the best of my knowledge, Red has no significant presence or role in DC Comics. DC has a vast array of characters, but Red isn't among them.
In many fanfictions, Red X could be Robin. Maybe he has some secret motives or a hidden side that leads him to take on the Red X persona. It could be a way for him to operate outside the normal constraints of the Teen Titans while still being involved in the action.