One interesting scenario could be Thomas Wayne seeing Damian's combat skills and being both proud and a bit shocked. After all, Thomas may not have expected such a young and fierce fighter in the family. Another could be them having a deep conversation about family values, with Damian learning from Thomas about the Wayne legacy from its very origin.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of DC - related fanfictions, and you're likely to find many 'nightwing meets damian' ones there. Just use the search function and type in the relevant keywords.
There's a fanfiction called 'Nightwing and Damian: A New Alliance'. In this story, Nightwing takes Damian under his wing to teach him some of the more subtle aspects of crime - fighting. It has some really cool action scenes where they work together in perfect sync. Also, 'Damian's Redemption through Nightwing' is a good one. It delves into Damian's inner turmoil and how Nightwing helps him find a better path.
A 'damian wayne meets superman fanfiction' could explore the clash of their ideologies. Damian, coming from the dark and gritty world of Batman, has a more cynical view of things compared to Superman's idealism. This could create a lot of tension and interesting character development. They might also have a battle of wits, Damian using his intelligence trained by Batman against Superman's experience. And perhaps in the end, they form an unlikely friendship that changes both of them for the better.
One possible scenario in this fanfiction could be that Jason Todd and Damian Wayne initially have a tense encounter due to their different upbringings and personalities. Jason, with his more rough - edged past, might be skeptical of Damian, who was trained in the League of Assassins. Talia could act as a mediator or perhaps have her own motives for bringing them together. Maybe she sees potential in their combined skills for some greater purpose she has in mind.
Lex Luthor could be a likely main villain. He hates Superman and would see Damian as a tool to use against him. He might manipulate Damian into believing Superman is a threat to Gotham, causing Damian to attack Superman first.
Jason Todd, who was brought back from the dead and has a bit of a grudge against the Bat - family at times. And Damian Wayne, who is trying to prove himself worthy in the family. In this fanfiction, their interactions drive the story forward as they are the central focus.
Well, perhaps Damian Wayne would bring a new dynamic to the Justice League in the fanfiction. He could introduce a different way of thinking about crime -fighting that is more in line with his upbringing. The League might have to adjust to his presence, and there could be some humorous moments as they try to understand his rather unique personality.
In a fanfiction, Poison Ivy meets Damian Wayne and it could be a really interesting dynamic. Poison Ivy is all about nature and life, while Damian has been brought up in a world of violence and justice. She might try to teach him about the importance of nature and how everything is interconnected. Damian, on the other hand, could show her that there are different ways to fight for what you believe in. Their encounter could lead to a change in both of their perspectives, and they might end up respecting each other more than they expected.
In a Young Justice meets Damian Wayne fanfiction, there could be intense battles. Damian's combat skills would be put to the test against the Young Justice team's unique abilities. Maybe there would be a misunderstanding at first, leading to a clash, but then they realize they can work together to fight a common enemy like a powerful new villain threatening Gotham or the world.