One popular crossover is with the Cowboy Bebop universe. The gritty, space - western settings of both series blend well. Another is with the Berserk universe, as the dark and violent themes can create interesting stories when combined with Wolfwood's character. And there's also crossovers with the Evangelion series, where the complex psychological aspects of Evangelion can be explored along with Wolfwood's own internal struggles.
You can start by looking on fanfiction platforms like Archive of Our Own (AO3). It has a vast collection of fanfics, and you can use the search function to specifically look for Nicholas D Wolfwood crossover stories. Another option is FanFiction.net, though the tagging system there might be a bit different.
One common theme is the exploration of their complex relationship. Given their different personalities and backgrounds in the original work, fanfictions often delve deeper into how they understand and support each other. Another theme is adventure. They might go on new quests or face new threats together, building on the action - packed nature of the original story.
Perhaps Nicholas is a local in Manhattan who has a special Christmas every year. He could be someone with a big heart, always spreading Christmas cheer around the neighborhood. He might be a shopkeeper who gives out freebies to kids during the holiday season, or a musician who plays Christmas carols on the street corners.
You can try some popular fanfiction platforms like Archive of Our Own (AO3). There are a large number of fanfictions about vash x wolfwood on it. Just search for the relevant tags and you'll be able to discover many great works written by fans all over the world.
I'm not sure what novel or work you're referring to, but in some novels, there might be a situation where the character's name has Nicholas in it, which is not necessarily a joke. For example, Nicholas Omandievich Sakhalin was a character name that appeared in A Song of Ice and Fire. If you have a specific novel or work title, I can provide more information.
It depends on the specific details and sources. Some aspects might be based on real events, but there could also be exaggerations or fictional elements.