Another theme is the idea of the unknown. Raising a dragon in the wizarding world is not a common thing, so there's a lot of exploration into the unknown. Harry has to figure out how to care for the dragon, what it eats, and how to train it. This exploration of the unknown also extends to the magic that might be associated with the dragon.
Well, the fanfiction could start with Harry being found by the dragon as a baby. The dragon, instead of seeing him as prey, takes him in and raises him. Harry would grow up learning how to fly on the dragon's back, and his idea of family would be very different. He might not understand the complex social hierarchies in the wizarding world at first. His magical abilities could develop in unique ways too. For example, he could have a natural affinity for fire - based magic due to his dragon - raised upbringing.
Harry Potter is the main focus, of course. But the dragon would play a crucial role. It could be a dragon with a special backstory, like it was once a guardian of some great magic and now it passes that knowledge on to Harry. Other characters could include some of Harry's friends from Hogwarts. They might be initially scared of Harry because of his dragon - like behavior but later come to understand him. And there could be some villains from the original story who try to take advantage of Harry's unique situation.
There could be. Fanfiction communities are full of creative ideas. Nagato has his own set of abilities and a complex backstory. If he were to raise Harry, it would likely change the trajectory of Harry's life in many ways. Maybe Harry would learn different forms of magic or have a different view on good and evil. However, it's also possible that no one has written this particular fanfiction yet. It all depends on the creativity and interests of the fanfiction writing community.
Well, there's a fanfic called 'Dragon's Bond with Harry'. In this one, the dragon that Harry raises becomes his loyal companion. It delves into how their bond affects Harry's relationships at Hogwarts. For example, it makes his friends a bit jealous at first, but then they all come to accept the dragon as part of their group. It also has some really exciting scenes where they go on adventures together in the Forbidden Forest.
Maybe it's an ancient and powerful dragon that has been in hiding for a long time. This dragon decides to raise Natsu for some prophecy - related reasons. It could be that the dragon believes Natsu is the key to saving the dragon or human world from a great danger.
One possible plot twist could be that the Dragon Slayer's combat skills and no - nonsense attitude influence Harry in unexpected ways. Maybe Harry becomes more physically aggressive in his defense against the Dark Arts, rather than relying solely on magic. Another twist could be that the Dragon Slayer has secrets about Harry's parents that even Dumbledore doesn't know, leading to a whole new understanding of Harry's heritage.
One common theme is identity. The dragonborn often struggles to find their place between the dragon world and the human world (if there is any human connection in the story).
In this fanfiction, it might start with Jaune as a baby being found by the dragon. As he grows, the dragon imparts its wisdom on him, like ancient languages or secrets of the land. Jaune could also have a special bond with the dragon that allows them to communicate telepathically. His journey could be about finding his place in the world, whether it's among the dragons or with the humans. He might also discover that he has a special mission, something that only he, with his unique upbringing, can achieve.