Obviously, Conner Kent is the main character. But often you'll also see other Young Justice team members like Robin, Superboy, and Miss Martian. Aqualad might also show up. Sometimes there are villains as well, like Lex Luthor who has a connection to Conner.
One great Young Justice Conner Kent fanfiction is 'Conner's New Path'. It delves into his struggle with his identity in a really interesting way. Another is 'Conner and the Team', which focuses on his relationships within the Young Justice team. There's also 'Conner Kent: The Hidden Powers' that explores some unique powers he might possess.
Jon Kent's age varies depending on the specific comic storyline and continuity. But generally, he's often depicted as a teenager or in his early twenties.
The writing style matters a great deal. If the author can vividly describe the scenes, whether it's a fight scene between Connor and a vampire foe, or a romantic moment between Connor and the vampire OC, it makes the fanfiction more enjoyable. The dialogue should also be on point, sounding like how the characters would actually talk in the Young Justice series. And the fanfiction should stay true to the overall tone and lore of the Young Justice world while still adding its own creative elements.
One common theme is the struggle between Conner's heroic nature and the Vampire OC's more primal instincts. It often creates a lot of internal and external conflict. Another theme could be the Vampire OC trying to fit into Conner's world of superheroes and justice, while hiding their true nature.
Well, FanFiction.net is another place to look. Search for 'Young Justice Connor Kent' and then manually go through the results to find the ones involving a vampire OC. You could also join Young Justice fan groups on Facebook or Reddit and ask the members if they know of any good fanfictions in this category.
One great 'Jon Kent x Damian Wayne' fanfiction is 'The Bond Beyond'. It delves deep into their relationship as they face a common enemy. The way the author portrays their contrasting personalities yet growing closeness is really engaging.
Their contrasting personalities make them an interesting pair. Damian is often seen as the more serious, dark - edged character due to his upbringing in the Bat - family. Jon, on the other hand, is full of youthful exuberance and has a more positive outlook, being a part of the Super - family. This contrast can lead to great character interactions in fanfiction.
There could be a fanfiction where Damian and Jon have to go on a quest to find a lost Kryptonian artifact. Along the way, they learn more about each other's cultures. Damian gets to understand more about Krypton through Jon, and Jon learns about the ways of the Bat - family from Damian. This story could explore their friendship and how they grow as individuals.
Another common theme is growth. As they are young characters, they are constantly evolving. Fanfictions often show their growth in terms of their powers, their understanding of the world, and their relationships. This could be something like Damian learning to be more open - minded from Jon, and Jon learning about the importance of discipline from Damian.