One common theme is friendship. Despite their differences, they often form an unlikely bond. Another is redemption, especially for Wade as he has a more complex past.
One interesting Peter Parker and Wade fanfiction could be about them teaming up to fight a new supervillain in New York. They combine their unique skills, with Peter's spider - sense and Wade's unorthodox fighting style.
One common theme is the exploration of their relationship in a new and unique context. With the mpreg aspect, it adds an extra layer of complexity to their bond. Another theme could be how they deal with the challenges that come with the situation, like protecting the unborn child and facing the reactions of their friends and family.
One great fanfiction is 'Unlikely Allies'. It explores their relationship in a world where they have to team up against a common enemy. The author does a wonderful job of showing their different personalities clash and then gradually come to understand each other.
Finding a particular 'cancer wade peter parker fanfic' can be a bit of a challenge. It would depend on what exactly you're looking for in the fanfic. Are you interested in a story where Wade has cancer and Peter Parker is involved in his journey? Or is it something else? Maybe if you can be more specific about the plot or the type of relationship between the characters you want to see, it would be easier to find the right fanfic.
Fanfiction.net is also a good place to look. There are many talented writers who post their Peter Parker and Wade stories there. However, the site's search function might not be as advanced as AO3, but with a bit of browsing, you can find some great reads.
The appeal lies in the exploration of new storylines. 'Peter x Wade superfamily fanfiction' allows for different takes on superhero families. It can combine elements of action, adventure, romance, and family drama. We can see how Peter and Wade's relationship evolves as part of a superfamily. For instance, they might have to deal with a family member who doesn't approve of their relationship at first, but through various events, they all come to accept and support each other. This gives a lot of room for character development and engaging plot twists.
In some fanfictions, Peter might be captured by an enemy who wants to use his spider - powers for evil. Wade discovers this and embarks on a rescue mission. Along the way, he might team up with some of Peter's friends or allies, like MJ or Ned. The story could also involve Wade having to face some of his own inner demons while trying to save Peter. For instance, his past experiences might make him hesitant at certain points, but his determination to save Peter overcomes those hesitations. And of course, there would be some great action scenes and witty dialogue between the characters.