One interesting concept could be the combination of magical elements from Harry Potter with the heist and con - artist skills from Leverage. For example, using magic to enhance the elaborate cons they pull off in Leverage. Maybe a wizard in the Leverage team could use spells to manipulate situations or gather information more discreetly.
Harry Potter and Nate Ford could be a likely pair. Harry's experience with facing great evils and his leadership skills combined with Nate's strategic mind in planning heists would make for an interesting dynamic. They could learn from each other's methods of problem - solving.
Fanfiction in general is when fans create their own stories based on existing fictional universes. 'Leverage crossover' likely means a fanfiction that combines the 'Leverage' universe with another one. It could involve the characters from 'Leverage' interacting with characters from a different show, movie, or book in a new and unique story created by the fans.
One common theme is teamwork. Both the Avengers and the Leverage team are known for their ability to work together, and in the crossovers, it's about how they combine their different skills. Another theme is the idea of using different methods to achieve a common goal. The Avengers might use their superpowers while the Leverage team uses their con - artist skills. And of course, there's often a big bad villain that they have to defeat together.
A crossover fanfiction might start with a case where the NCIS Los Angeles team discovers that a crime they are investigating has a connection to a scheme that the Leverage team has been looking into. They initially suspect each other but then realize they need to work together. The story could focus on the cultural clashes between the two groups, as the NCIS agents are more by - the - book while the Leverage crew is more used to operating in the gray areas of the law.
Fanfiction that combines 'Leverage' and 'Angel' is a creative blend. It likely involves taking characters from both shows and putting them in new situations. For example, a character from 'Leverage' might team up with an Angel character to solve a supernatural mystery that also has elements of the con - jobs seen in 'Leverage'.
Another theme is the clash of worldviews. The Leverage crew is more about earthly justice and taking down corrupt humans, while the Supernatural guys are used to dealing with otherworldly threats. So in some fanfictions, there can be interesting discussions and conflicts arising from these different outlooks. For instance, Nate from Leverage might question the Winchesters' methods of just killing demons instead of trying to reform them or something.
The combination of different characters. The characters from Psych and Leverage are so distinct, and seeing them interact in a crossover is really cool.
Well, it might be possible if the Leverage crew gets pulled into the Walking Dead world somehow. Maybe they start out thinking they're on just another job, but soon realize they're in a world full of zombies. They could use their talents for planning and deception to help some of the main characters from The Walking Dead. For example, Eliot could use his fighting skills to protect against walkers while Hardison could figure out how to get communication systems working again in the midst of the chaos.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions from various fandoms, and you're likely to find some 'leverage crossover' ones there. Another option is FanFiction.net, though the quality can vary more on that site.