Well, it could be a story about a race. There's a magical artifact that has been stolen and both Nightcrawler and Quicksilver are tasked with retrieving it. Quicksilver is confident he can outrun anyone with the artifact, but Nightcrawler has the advantage of teleporting to shortcuts. Along the way, they face various obstacles and enemies who also want the artifact for their own evil purposes. They have to learn to work together to succeed in getting the artifact back. And in the process, they also learn more about each other's strengths and weaknesses.
One idea could be a story where Nightcrawler and Quicksilver team up to stop a powerful villain who is causing chaos in the city. Their different powers would complement each other well. Nightcrawler could use his teleportation to surprise the enemy and Quicksilver could use his super speed to quickly disarm any traps or threats.
Love and romance can also be a theme, although not always. In some fanfictions, their relationship might develop into a romantic one. This could involve the usual tropes like misunderstandings, jealousy, and then finally coming together. It might also explore how their relationship affects the rest of the X - Men team and their dynamics within the mutant community.
Well, I'm not sure about specific Quicksilver x Nightcrawler fanfiction titles off the top of my head. But you could try searching on fanfiction.net as well. Maybe look for tags like 'Quicksilver', 'Nightcrawler' and'relationship' to narrow down the search. It might take some time to sift through, but you're likely to find some interesting reads.
A possible plot could be that Euphemia is in search of a powerful ally to help her in a coming war in her world. She hears of a legend about a powerful being from another dimension, which turns out to be Naruto. She manages to bring him to her world, and together they train her soldiers in new combat techniques.
Imagine if there was a tournament that brought the best fighters from both universes together. Naruto, Sasuke, and the others from the Naruto world, and Kai, Jay, and the rest from Ninjago. They start off competing against each other but then realize there is a greater threat lurking. A group of shadowy figures wants to steal the powers of both ninjas and warriors. So, they must put aside their differences and combine their skills to fight this new enemy.
In this fanfiction, Naruto becoming a guardian might mean he has to learn new rules and powers related to guardianship. He could start by befriending other guardians and learning from them. His journey would be about not only protecting but also understanding this new role. He might face challenges from those who don't trust a ninja in a guardian's role, but he'd prove himself with his determination and strength.
The plot could involve a threat that requires the combined efforts of both universes. Maybe an ancient evil that can only be defeated by the unique powers of Naruto characters and the technology and superpowers of Marvel heroes. For instance, a villain who can absorb all forms of energy is threatening both the ninja world and the Marvel universe. Naruto and his friends team up with the Avengers to stop this threat. Along the way, they have to learn to work together, which could lead to some interesting character interactions, like Naruto trying to understand Stark's high - tech gadgets or Thor explaining his Asgardian magic to the ninja.
The plot could involve a common enemy that both Naruto and Beelzebub have to face. For example, a powerful demon that threatens both the ninja world and the world of Beelzebub. Naruto's determination and Beelzebub's unique abilities would combine to take on this threat. They might start off as rivals, not trusting each other at first, but as they face challenges together, they form an alliance. Naruto could show Beelzebub the value of friendship and loyalty, which are important themes in his own world.
A Homelander - centered Avengers fanfiction plot could start with Homelander arriving in the Avengers' universe. He might be sent there by some unknown force or be on a mission of his own. At first, the Avengers would be cautious of him. Then, Homelander could start causing trouble, trying to take over the Avengers' base or resources. The plot could then revolve around the Avengers trying to stop him or reform him.
The plot could involve Naruto characters in a Disney - like world. For example, Naruto might find himself in the world of 'Frozen' and team up with Elsa to stop an evil jutsu - using snow monster. He could use his Rasengan against the icy threats while Elsa uses her ice powers to assist him. This would be a cool mix of the ninja - like action from Naruto and the magical, fairy - tale setting of Disney.