One idea could be that a young and curious character accidentally gets too close to the sleeping dragon while exploring its lair, and has to figure out how to escape without waking it. Another could be that there's a magical spell that causes the dragon to have strange dreams, and the protagonist must enter the dragon's dream world to undo the spell.
A brave knight could be a main character. He might be on a mission to prove his courage by getting close to the sleeping dragon without disturbing it. Or a young mage who is curious about the dragon's magic and wants to study it while it sleeps.
One idea could be that Sakura is under a spell that makes her trust the villains and she ends up sleeping in their lair as part of their devious plan. Another could be that she is trying to infiltrate the villains' group undercover and has to pretend to befriend them to the point of sleeping in their quarters. Maybe she's lost in a strange dimension where the villains seem like the only ones who can offer her shelter for the night.
One idea could be that Sonic and Tails are camping out in a peaceful meadow. They fall asleep under the stars and have shared dreams of their future adventures together. In the dream, they discover a new power - like the ability to fly even faster. Then they wake up excited to start the day and see if they can make that dream a reality.
One idea could be exploring a different path for the main characters. For example, if they met under different circumstances in the Never Sky. Maybe instead of their initial encounter, they meet during a rare peaceful moment between the tribes, which changes the whole dynamic of their relationship from the start.
One idea could be exploring the different personalities of the dragons in Dragon Tales and how they react to being tickled. For example, Ord might be all bluster at first but then start laughing uncontrollably. Another could be creating a scenario where the characters from the show enter a magical tickle forest where everything that touches them makes them giggle. Maybe a new character is introduced in the fanfic who has the power to tickle with a special kind of magic that the dragons have to figure out how to deal with.
One interesting plot could be the dragon being reborn into a different era and having to adapt to new magical rules. For example, if it was reborn in a world where magic is scarce, it would have to find ways to regain its former power.
One idea could be a dragon rider who discovers a new type of dragon with unique abilities. For example, a dragon that can teleport short distances. This would add a whole new dynamic to the story as the rider has to figure out how to use this ability in battles or for exploration. Another plot could involve a group of dragon riders from different regions coming together to face a common threat, like a powerful dark sorcerer who wants to control all the dragons. They have to overcome their cultural differences and learn to work together.
One idea could be a young hero who has to conquer a dragon to prove their worth in a kingdom. The hero might start off as an underdog but discovers a special power or weapon along the way.
The summer dragon could be the key to saving a kingdom that is suffering from an eternal summer. A group of adventurers sets out to find the dragon and convince it to use its power to restore the normal cycle of seasons. Along their journey, they face many challenges like treacherous terrains and other dangerous magical beasts.
Well, a great plot for dragon maid fanfiction could involve the dragon maid learning about a new power she has. For example, she discovers she can communicate with other magical creatures. Or there could be a story where she tries to throw a surprise party for her master but everything goes wrong in a humorous way. Also, a plot where she teams up with other maids (maybe from different magical backgrounds) to solve a mystery in the town they live in.