One main theme is power. Combining Harry's existing magic with the dragonborn's power makes for an exploration of different levels and types of power. Another theme is identity. Harry has to figure out how being dragonborn fits into his identity as a wizard.
One common theme is power. Harry already has magical powers in the Harry Potter world, and as the Dragonborn, he gets a whole new set of abilities. Another theme is identity. He has to figure out how to be both Harry Potter and the Dragonborn. And of course, there's often the theme of conflict, like using his new powers to fight against Voldemort in a different way.
Sure, there are. A lot of these fanfics play with the idea of Harry having the Thu'um, the dragon shout. They might have him shouting commands in the middle of a wizarding duel or using it to communicate with magical creatures in ways that are different from his normal spell - casting. It's really fascinating to see how authors mix these two concepts.
One common theme is identity. Since the Altmer are a proud and often elitist race in the Elder Scrolls lore, an Altmer being the Dragonborn creates a conflict between their racial identity and this new, all - powerful role. They have to figure out how to be both an Altmer and the Dragonborn.
One common theme is friendship. The dragonborn and the dragon often form a deep bond of friendship. Another theme is adventure. They usually go on various adventures together.
Power - up is another theme. Often, in these fanfics, either Naruto gets the powers of the Dragonborn or vice versa. This allows for exploring new abilities and how they can be used in different situations. It also makes for some really cool fight scenes. And then there's the theme of friendship. The two characters from different worlds coming together and forming an alliance or a friendship is something that many fanfics like to explore.
One common theme is identity. Since argonians are a unique race in the Elder Scrolls universe, when they become the dragonborn, they often struggle with how this new identity fits with their old one. Another theme is acceptance. They have to deal with the acceptance or lack thereof from other races in Skyrim.
It could be really exciting. The Dragonborn has special powers like shouting in the Elder Scrolls series. If Harry was the Dragonborn, he might use shouts to defeat Voldemort instead of magic spells. For example, he could use 'Fus Ro Dah' to blast away Death Eaters.
One unique element is the combination of magic systems. In 'Harry Potter', magic is mainly done through wands and spells, while the Dragonborn has shouts and different combat skills. Fanfics often blend these two in creative ways.
I really like 'A Dragonborn's Adventure in the Wizarding World'. It combines the lore of both Dragonborn and Harry Potter. The author does a great job of integrating the combat skills of the Dragonborn into the magical battles at Hogwarts. For example, when facing dark wizards, the Dragonborn uses his shouts in unexpected ways to counter their spells.
One common theme is power and its consequences. Since the female Dragonborn has great power, many fanfics explore how she copes with it, whether she is corrupted by it or uses it for good.