It might also be Gaara. Their initial encounters were filled with tension, but as the story could be twisted in fanfiction, that could develop into a different kind of relationship. Gaara's own journey of self - discovery and Naruto's influence on him could be a basis for a romantic relationship in fanfic.
Another character who might be her boyfriend in fanfiction is Viktor Krum. Given their connection from the Triwizard Tournament, it's not a stretch for fanfiction authors to develop a deeper romantic relationship between them. They could explore how Hermione's intelligence and Viktor's athleticism complement each other.
Typically, 'boyfriend lemon fanfiction' often focuses on the romantic relationship between characters. The 'lemon' aspect usually implies some degree of romantic or sexual tension, which is expressed in a more vivid way. It may also explore the emotional bond between the boyfriend and the other character in the story.
In some fanfictions, Naruto can be made into Rias' boyfriend through creative writing. Fanfiction allows for crossovers between different fictional universes, and writers can imagine unique relationships. However, in the original Naruto and High School DxD (where Rias is from) storylines, there is no such relationship.
Yes, there are likely fanfictions with this premise. In the Naruto fan community, fans often come up with various creative pairings. Some writers might be interested in exploring a relationship between Naruto and Anko, imagining how their personalities would interact, what kind of adventures they could have together, and how their relationship would develop within the Naruto universe.
There probably is. Fanfiction writers often come up with all sorts of creative ideas. Given the popularity of the Harry Potter series, it's not surprising that someone might write a story where Harry has a Muggle boyfriend. It could add a new layer of complexity to Harry's character and explore how the wizarding world and the Muggle world interact in the context of a relationship.
A mysterious and brooding character would be great. For instance, a wizard who has been living in seclusion but is drawn to Sakura's positive energy. His magic and knowledge could add an exciting element to their relationship. He could teach Sakura about different spells and the magical world, and they could go on adventures together.
Another option could be someone from a different mythology or realm. For example, an elf or a demigod from another pantheon. This would add an interesting twist to the fanfiction as it would bring in new elements and interactions between different mythologies and the mortals.
It could be Draco Malfoy. In some fanfictions, they put aside their differences and develop a relationship. Sirius would be very surprised as he used to see Draco as an enemy. But seeing Draco's growth and his love for Harry could change Sirius' view.