Archive of Our Own (AO3) is a great place to start. It has a large collection of fanfiction and you can use the search function to look for 'Harry x Hannah' and 'Yule Ball' related stories. Just be aware of the content ratings as 'lemon' implies mature content.
Another option could be some smaller, more niche Harry Potter fanfiction websites. However, these might not be as well - regulated as the bigger platforms. You can also check out some Harry Potter fan forums where people might share or recommend such fanfiction. But always make sure to respect the rules and guidelines of the platforms and communities you are using.
Some Harry Potter - focused fan communities on social media platforms might also be a good place to search. For example, on Reddit, there are sub -reddits dedicated to Harry Potter fanfiction. Members might be able to recommend some 'Harry x Hannah Yule Ball fanfiction' or even point you to where they've found it before.
I'm not sure specifically about 'Harry x Hannah' Yule Ball lemon fanfiction. However, fanfiction can vary greatly in quality. You could try searching on popular fanfiction websites like FanFiction.net or Archive of Our Own and filter through the results to see if there are any that meet your criteria.
One good 'Harry x Hannah Yule Ball fanfiction' might be the one where they share a magical dance at the ball. In this story, Hannah is wearing a beautiful blue dress that shimmers in the ballroom lights. Harry is nervous but excited to be with her. They start with a simple waltz and as the music progresses, they feel a deeper connection.
Draco Malfoy and his cronies could be antagonists. They might try to disrupt Harry and Hannah's time at the Yule Ball out of jealousy or just to cause trouble. For example, they could spill drinks on Hannah's dress or try to steal Harry's dance partner for a dance just to annoy them.
One idea could be that Hannah and Harry get paired up for a special Yule Ball dance competition that's not part of the regular ball. They start off as strangers but gradually bond through their shared love for dancing and the magic of the Yule Ball.
There's also a possibility that it's a new character created specifically for this fanfiction. This new character could bring a fresh perspective and allow the author to explore different aspects of Harry's gentlemanly behavior at the Yule Ball.
Their relationship could develop through shared experiences at the Yule Ball. For example, they might have a really deep conversation while dancing that makes them see each other in a new light.
They could share a magical dance. Harry, being a bit clumsy at first but then getting into the rhythm with Ginny's guidance. Their eyes locked as they twirl around the ballroom floor.
In this fanfiction about the Yule Ball, there are many possibilities for Harry and Cho. They could be initially hesitant around each other. However, the Yule Ball is a special event full of magic and wonder. Maybe they find a quiet corner to talk, away from the noise and the crowd. During their conversation, Cho might open up about her feelings for Cedric, which could lead to Harry comforting her in a new and deeper way, strengthening their bond.
Yes, there are likely many such fanfictions. The Yule Ball is a significant event in the Harry Potter universe, and Harry's character development and his behavior as a gentleman during it can be an interesting topic for fanfiction writers to explore.