You can try some popular fanfiction websites like Archive of Our Own (AO3). It has a vast collection of fanfictions, and you might be able to find some related to Drogon, Daenerys, and Lemon by using the search function.
One interesting story could be about Drogon protecting Daenerys in a unique situation. Maybe Drogon senses a hidden threat against Daenerys and swoops in to save her. This could lead to a deeper bond between them, which is often explored in fanfiction.
Sometimes, characters like Arya Stark are paired with Daenerys. Arya's skills as an assassin could be used to eliminate key targets in Daenerys' revenge plan. Their combined strength and determination would make a formidable force against their enemies.
One key element is the relationship dynamic. Since Drogon is a dragon and Jon is a human, exploring how they interact, communicate (if there is any form of communication in the fic), and form a connection is central.
Jon Snow is often included. His connection with Daenerys in the original series makes him a popular addition in fanfiction. He might team up with Daenerys to fight a common enemy or have a more complex relationship with her.
There is a fanfic called 'Drogon's Bond with Jon' where the author delves deep into how Drogon, being a powerful dragon, and Jon, with his own complex backstory, form an unexpected alliance. It's a great read if you like stories that focus on the bond between different beings. In this fanfic, the author vividly describes their interactions, from the first encounter which is filled with suspicion to the later stages where they start to rely on each other.
Perhaps Jon Snow and Drogon meet in a desolate place. Jon is alone and injured, and Drogon, instead of attacking, shows a strange compassion. Jon, using his wits, figures out how to communicate with Drogon. They then form an unlikely bond, and Drogon helps Jon get back to civilization. This would be a great character - development - based fanfiction scenario.
In the fanfiction world, Jon Snow meets Drogon and there could be an instant connection. Since Jon is a Targaryen (in the show's revelation), Drogon might sense a kinship. They could form an alliance. Jon could use Drogon to gain an upper hand in battles or to travel quickly across Westeros. It would be an amazing sight to see Jon Snow on the back of Drogon, flying over the kingdoms.
One great 'Naruto and Daenerys Fanfiction' is 'The Meeting of Worlds'. It imagines Naruto being transported to Daenerys' world. The story is exciting as it shows how Naruto's ninja skills are perceived in a world of magic and dragons. He quickly becomes an ally to Daenerys and helps her in her quest for the Iron Throne. Another interesting one is 'Alliance Beyond Worlds' which focuses on their combined efforts against a common enemy that threatens both their realms.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fan - made stories, and you can easily search for 'Naruto and Daenerys' crossovers there. Another option is FanFiction.net. There are also some niche forums dedicated to crossover fanfictions where you might find some hidden gems related to Naruto and Daenerys.