One popular trope is the 'Forbidden Love' aspect. Since Erik is often seen as an outcast, their kiss can be a very intense moment within the context of a relationship that society might not approve of.
Many popular ones will stay true to the original characters' personalities. So, Christine might be shown as kind and a bit conflicted, and Erik as complex and passionate. This helps the readers to feel more connected to the story as it aligns with what they already know about the characters.
You can try fanfiction websites like Archive of Our Own (AO3). There are often a large number of fan - created works there. Just search for 'christine and erik kiss' in the search bar, and it will show you relevant stories.
One popular trope is the 'first kiss' scenario. It's often written with a lot of build - up and anticipation. Maybe Inuyasha has been fighting his feelings for Kagome for a long time, and then finally, in a moment of intense emotion, they share their first kiss. Another common trope is the 'near - death kiss'. For example, Inuyasha is severely injured, and Kagome, fearing she might lose him, kisses him out of love and desperation.
One popular trope is the 'First Kiss' scenario. It's often a very anticipated moment in fanfictions. Writers like to build up the tension before Fitz and Sophie finally share their first kiss.
Another trope is the 'hurt/comfort' one. For example, when the main character faces some sort of problem or gets hurt, one of the male characters comes to her rescue and comforts her. This allows for some really emotional and heart - warming scenes in the fanfiction.
The 'secret kiss' trope is also quite common. Maybe they have to keep their relationship a secret for some reason, like family drama or Hogwarts rules. It adds an element of mystery and excitement to the story. And then there's the 'angsty kiss', where there have been misunderstandings or fights between them before the kiss, which makes the moment even more intense.
One popular trope is the 'first kiss' scenario. It's often a moment filled with anticipation and nervousness. Another is the 'forbidden kiss' trope, where there might be some external factors preventing Maya and Farkle from being together, like family or social status differences. The 'reunion kiss' is also common, especially if there has been a period of separation between the characters in the fanfiction.
You can try fanfiction platforms like Archive of Our Own (AO3). There are a large number of fanfictions about Erik and Christine's kiss there. You can simply search for 'Erik and Christine kiss' in the search bar, and it will show you various works with different storylines and writing styles.
There's also the theme of sacrifice. Sometimes Erik sacrifices his own desires for Christine's happiness, and vice versa. It adds a layer of depth to their relationship. And the exploration of their different social standings, with Erik being an outcast and Christine being a more 'normal' part of society, is another common theme in these fanfictions.
In a different version, Christine gets lost in the opera house and Erik is the one who finds her. He could have been watching her from afar all this time. Instead of scaring her, he gently leads her to a safe place. They start talking about their dreams and fears. Christine realizes that Erik is not the monster everyone makes him out to be. This new understanding blossoms into love as they continue to meet secretly and share their innermost thoughts.