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.
One common theme is the forbidden love. Since dragonborns might be from a different species or have a special status, their love with another character is often forbidden in the story settings. For example, a dragonborn falling in love with a human in a world where such relationships are not accepted.
One common theme is the struggle between good and evil within the dragonborn. Since they have such powerful abilities, they can be tempted towards the dark side. Another theme is isolation. Their unique nature often makes them outcasts. For example, in many stories, they are feared by normal people.
One common theme is the struggle with identity. Since it's a vampire and a dragonborn, there's often a conflict between the two natures. Another theme is isolation. The characters are often different from others and face prejudice. For example, in many stories, the vampire dragonborn is shunned by both vampire clans and dragonborn tribes.
Common themes include the exploration of new abilities. A Dragonborn - vampire might have a combination of dragon shouts and vampiric magic. There's also the theme of redemption. Maybe the character was turned into a vampire against their will and they are trying to find a way to reverse it or use their new form for good. And relationships are another theme, like how their vampirism affects their relationships with other characters, whether it's their friends, family, or enemies.
One common theme is the forbidden love aspect. Since the dragonborn is often a special and powerful character, a relationship with them might be considered taboo in the fictional world, which adds to the allure in the fanfiction. Another theme could be the exploration of the dragonborn's unique powers in a romantic or sexual context, like how their dragon - like abilities interact with their partner.
One common theme is power struggle. When the dragonborn enters a new world, there are often those who either fear or covet his power. For example, in a crossover with a medieval - style world, the local lords might see the dragonborn as a threat to their rule.
One common theme is self - discovery. Since the female dragonborn often has to figure out her place in the world. Another theme is power and how she uses it or struggles with it.
One common theme is friendship. Often, the female dragonborn forms a bond with a dragon, and this friendship becomes central to the story. For example, they might rely on each other in battles or when exploring new and dangerous places.
One common theme is power. Combining the powers from Naruto, the Maelstrom (presumably from some other source), and the Dragonborn makes for some really interesting power - play scenarios.
Adventure is also a big theme. The male dragonborn travels across different lands in search of something, whether it's a magical item or to defeat an evil force. Along the way, he meets the members of his harem. In 'The Dragonborn's Odyssey', for instance, the dragonborn's journey across a vast and dangerous continent is the backdrop for him to meet and fall in love with different female characters.