Wolverine could develop more patience. Usually a lone wolf, being around Nightcrawler's more upbeat and spiritual nature might force him to slow down and think more. For example, Nightcrawler's teleportation ability might make Wolverine rely on a different kind of strategy in combat rather than just his brute force.
One good Wolverine and Nightcrawler hurt fanfiction could be 'The Trials of Wolverine and Nightcrawler'. In this fic, they face a powerful enemy that manages to wound them both physically and emotionally. The author does a great job of exploring their relationship under stress.
FanFiction.net is also a good place to search. There are a lot of X - Men related fanfictions there. Browse through the X - Men category and specifically look for ones with Wolverine and Nightcrawler in a hurt scenario.
One plot idea could be Wolverine and Nightcrawler teaming up to rescue a group of mutant children from an anti - mutant organization. Wolverine's combat skills and Nightcrawler's teleportation would make for an exciting dynamic in sneaking in and out.
I really like 'Nightcrawler x Reader: The Rescue Mission'. It's a thrilling story where the reader gets into trouble and Nightcrawler has to save them. It's full of action and the chemistry between the two characters is palpable. 'Soulmate Connections' is also a good one. This fanfiction delves into the idea of them being soulmates and how they discover this fact. It has some really sweet moments. And 'Unlikely Allies' shows a different side of their relationship. They start off as just allies but slowly develop feelings for each other as they face various challenges together.
Professor Xavier would be a great addition. His wisdom and leadership can provide guidance to both Nightcrawler and the OC. He can also offer insights into the nature of their relationship and the challenges they might face as a mutant - human (assuming the OC is human) couple. Another good character could be Wolverine. His rough and tough nature can contrast with Nightcrawler's more gentle and spiritual side, and he can act as a protector or a source of tough love for the OC.
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, the theme of unity is quite prevalent. They come from different backgrounds but they come together. There's also the theme of protection. They protect each other from various threats. And the theme of self - discovery is also there. As they interact, they learn more about themselves. For example, Nightcrawler might discover new aspects of his powers through his relationship with Angel.
One common theme is acceptance. Since Nightcrawler has a rather unique appearance and powers, a lot of fanfictions focus on the reader accepting him for who he is. Another theme is adventure. Many stories involve the two going on some sort of adventure together. For example, they might be on a mission to save someone or stop a villain. Love is also a prevalent theme, of course. The relationship between the reader and Nightcrawler often develops into a romantic one.
One great 'X Men Evolution Nightcrawler fanfiction' is 'The Adventures of Nightcrawler'. It really delves into his character, showing his growth and his relationships with the other X - Men in a new and exciting way.