Another option could be Tumblr. There are often fanfic recs (recommendations) on Tumblr blogs dedicated to the fandom. Some bloggers also write and post their own short fanfictions, so it's worth exploring.
There's also the 'hurt/comfort' trope. Perhaps one of them gets injured in a fight or has an emotional breakdown, and the other is there to comfort and take care of them. This can be a catalyst for their feelings to deepen. For instance, Thalia might get hurt while protecting Reyna, and Reyna realizes how much Thalia means to her during the recovery process.
Well, in this fanfiction, perhaps they meet in a place of healing. Reyna is recovering from the stress of her leadership duties and Nico is dealing with his own inner demons. They find solace in each other's company. They start sharing their deepest secrets, and through these heart - to - heart conversations, they fall in love. It could also involve some magical elements related to their demigod powers that enhance their connection.
Their relationship could develop slowly. At first, they might just be acquaintances who respect each other's abilities. Then, as they spend more time together, they start to have small conversations that gradually become deeper. Eventually, they realize they have feelings for each other.
One common theme is friendship development. Since they are both strong characters from different backgrounds in the same fictional universe, many fanfictions explore how they might become friends and support each other.
Another common theme is the power of friendship within their relationship. In these fanfictions, their friends play important roles in either supporting or opposing their relationship. This adds an extra layer of drama and complexity. For instance, some of their friends might be worried about how their relationship could affect their group dynamics or the dangerous situations they often find themselves in.
Yes, there are quite a few out there. You can start by looking on fanfiction.net. Just search for 'Percy Jackson and Reyna' in the search bar, and you'll find a bunch of stories exploring their relationship. Some might be more to your liking in terms of writing style and plot development than others.
Their relationship might develop through acts of kindness. For instance, Percy might give Reyna a small gift that has significance to him, like a seashell from the beach near his home. Reyna, touched by this gesture, starts to see Percy in a different light. They then begin to seek each other out more often, having conversations that are deeper and more personal. This leads to a growing affection between them.
One possible scenario could be that they are on a quest together. During the quest, they face many challenges and have to rely on each other. This mutual dependence gradually turns into a deeper affection as they see the best and worst of each other. For example, Percy might use his powers to protect Reyna from a dangerous monster, and Reyna in turn might use her strategic skills to get them out of a difficult situation. Their shared experiences on the quest build a bond that develops into love.
I'm not sure of the exact name, but there is a fanfiction where Thalia and Nico's love is set in a modern - day high school AU. It's really interesting as it gives a fresh take on their characters, with Thalia being the tough girl and Nico the mysterious loner who slowly fall for each other.
In the 'Mark of Athena' fanfiction where Thalia meets Reyna, a lot can occur. Thalia may bring her experience with the Hunters of Artemis. Reyna, on the other hand, has her own knowledge of Camp Jupiter. They could exchange information about their respective groups. Maybe Thalia shares some secrets about the gods that she has learned from her time with the Hunters, and Reyna tells Thalia about the unique challenges and strengths of Camp Jupiter. This exchange could lead to a better understanding between the two camps and also strengthen their personal bond.