One idea could be exploring the characters' post - war traumas. For example, how they deal with the memories of the battles and losses. Another plot could focus on the rebuilding of their world. Maybe they have to establish new relationships with former enemies. Also, a plot about the discovery of hidden secrets during the war that now come to light and affect the post - war situation would be interesting.
Percy Jackson is definitely one of the most important. His leadership during the war and his relationships with other characters make him a central figure. Annabeth Chase too, as she is often the brains behind many plans. Grover would also be important as he has his own unique perspective and abilities that can play a big role in the post - war story.
Firstly, make sure you have a basic knowledge of the hoo books' lore and mythology. This will make the fanfiction more enjoyable as you'll be able to pick up on allusions and references. When reading the fanfiction, don't be afraid to explore different genres within it. Some might be action - packed, while others could be more focused on relationships. Also, consider joining fanfiction reading groups where you can share your thoughts and discover new stories.
One popular theme could be adventure. In hoo lemon fanfiction, characters might embark on exciting quests, facing various challenges and mythical creatures. Another theme could be friendship. The relationships between different characters are often explored, how they support and grow with each other. And love is also a common theme, with different types of romantic relationships being developed among the characters.
First, know the characters well from both 'How to Train Your Dragon' (HTTYD) and 'Heroes of Olympus' (HOO). For example, Toothless from HTTYD has unique behaviors and abilities, and Percy Jackson from HOO has his own set of powers and personality traits. Then, create an interesting plot that combines the two universes. It could be something like the demigods from HOO visiting the world of HTTYD and having to work together with the dragon riders to fight a common enemy. Also, make sure to keep the voices of the characters true to their original stories.
The main characters often featured in hoo lemon fanfiction can vary, but some typical ones are [character A]. They are typically portrayed with a complex personality, having both strengths and weaknesses. [Character B] is also often present, being the comic relief in many stories, making the overall tone lighter. And [Character C], who is often the one with a mysterious past, which adds an element of intrigue to the fanfiction.
You can start by looking on fanfiction.net. It has a large collection of various fanfictions, including 'hoo hp crossover' ones. Just use the search bar and type in relevant keywords to find what you're looking for.
There's a fanfic called 'Percy Jackson in the Wizarding World'. In this story, Percy finds himself accidentally transported to Hogwarts. His skills as a demigod are put to the test in the magical school, and he has to navigate the complex relationships and rules there. It's full of action and humor.
One popular trope is the 'fish out of water' situation. For example, a character from HTTYD finding themselves in the world of HOO and being completely confused by the Greek gods and demigods. Another is the 'team - up' trope, where the dragon riders and the demigods join forces to defeat a powerful enemy. A third one could be the 'culture clash' trope, with the Vikings from HTTYD having different values and ways of life compared to the modern - day (sort of) world of HOO.
I'm not entirely sure what 'hoo sex fanfic' specifically refers to. It could potentially be some form of fan - created fictional writing related to a particular 'hoo' concept that involves sexual themes. However, without more context, it's difficult to be precise.