Friendship is a common theme. Their meeting often leads to the start of a unique friendship. Another theme could be discovery, as they discover new things about each other.
One popular 'james meets vernon fanfiction' might be 'The Unexpected Encounter'. It's a story where their meeting leads to an adventure full of mystery. Another could be 'When James and Vernon Cross Paths', which focuses on how their different personalities create interesting interactions.
One possible scenario could be a tense encounter. Lily and James, being magical, might accidentally reveal their powers in front of Petunia and Vernon, leading to shock and disbelief from the latter two. Vernon, with his narrow - minded views, could start ranting about how abnormal it is. Petunia, on the other hand, might be secretly jealous of Lily's magical world that she was once so close to but is now so far away.
Themes in 'harry meets james fanfiction' often include identity. Harry gets to see himself in relation to his father, which helps him understand his own identity better. Also, there's the theme of redemption. Sometimes James has things he regrets or things he wishes he could have done differently in his life, and meeting Harry gives him a chance to make amends in a way. In addition, the exploration of the past is a big part of it. Harry gets to learn about a time he never experienced directly through his father's eyes, like what Hogwarts was like when James was a student.
A great fanfiction in this regard is 'When Potters Meet'. Here, James and Lily are brought back to life briefly and they cross paths with Ginny. The story focuses on Ginny's reaction to meeting the parents of the man she loves. It shows her respect and admiration for them, and there are some really sweet moments where they exchange memories and advice about Harry.
The main character is James. Regarding the Evans, there could be a character like Mr. Evans who is a strict but fair father figure. And then there might be a female Evans, perhaps named Lily, who has a special connection with James. They could start as friends and then their relationship could develop into something more meaningful as the fanfiction progresses.
One possibility could be that Snape meets James Sirius Potter in a Hogwarts flashback scenario. Maybe James Sirius Potter discovers some old memories or secrets related to Snape through a magical object. This could lead to a whole new understanding of Snape's character for him.
One possible scenario could be that McGonagall meets James Sirius Potter in a Hogwarts corridor. She might be reminded of his father, James Potter. She could give him some sage advice about living up to the Potter name and the importance of using his talents for good, just as his father did in his own way.
Lily is kind - hearted and magical, while Petunia is often bitter and mundane. Their personalities could clash as Petunia might envy Lily's abilities and life. James is confident and a bit of a prankster. Vernon is strict and set in his ways. James' carefree nature could really annoy Vernon. However, Lily's kindness might also start to soften Petunia over time. And if James tries hard enough, he could find a way to get Vernon to at least tolerate him.
One common theme is friendship. Often, James and Mr Evans start off as strangers and gradually form a strong bond of friendship. For example, they might help each other through difficult times or share common interests.