A love interest could be a powerful witch who is part of a coven that has a long - standing relationship with the Mikaelsons. She might be tasked with helping Henrik remember his past life, and during this process, they develop feelings for each other. Or, he could fall for a supernatural being who is neither vampire, werewolf nor witch, like a siren or a fae. This would bring in new elements and cultures from the supernatural realm into the story and create a unique love story for Henrik in his reincarnated form.
One possible plotline could be Henrik reincarnated in a modern world. He might struggle to remember his past life as a Mikaelson at first. Then, as he starts to have strange dreams or visions, he slowly uncovers his true identity. Another could be that he is reincarnated into a family that has some sort of connection to the Mikaelsons, perhaps an old enemy or an ally. This would lead to all sorts of conflicts and revelations as he tries to figure out why he's there and what his purpose is.
Perhaps a mortal with a special gift for metallurgy or some other craft related to Hephaestus' work. This mortal could be seen as an equal in terms of skill, at least in a way that catches Hephaestus' eye. They would bond over their shared love for the craft, and over time, this bond could turn into a deep, loving relationship. Hephaestus might be drawn to the mortal's unique perspective and the way they approach the craft despite not having the same divine powers as he does.
In the fanfiction world of 'henrik mikaelson', 'Henrik's Ascent' is a must - read. It details Henrik's rise to power and how he copes with the newfound responsibilities. It has a great plot that keeps you hooked from start to finish. Another notable one is 'Henrik's Allies and Enemies' which focuses on the complex relationships Henrik forms with different characters, be they friends or foes.
Hinata is a very obvious choice. She has always had deep feelings for Naruto. In a fanfiction, their relationship could spiral further, exploring more of their shared interests, like their love for the village and their dreams for the future of the ninja world.
One great 'Vampire Diaries Henrik Mikaelson Fanfiction' is 'The Lost Mikaelson'. It delves into Henrik's life before his untimely death. It shows his relationships with his siblings in a very different light, exploring his hopes and dreams that were cut short. Another good one is 'Henrik's Redemption Arc'. This fanfic imagines what would happen if Henrik somehow came back to life and had to deal with the modern world of vampires and werewolves. It has a really interesting plot that keeps you hooked from the start.
It could be Marcel. He has a long - standing relationship with the Mikaelson family, and his connection with Rebekah could deepen during her pregnancy. He might be the one to support her through the difficult times.
In this type of fanfiction, Eric is a very likely love interest. He was already interested in Sookie when she was human, and now that she's a vampire, they might have a deeper connection. Bill, on the other hand, may have a love - hate relationship with Sookie. He could be jealous of her new vampire status. There could also be a non - vampire love interest, like a werewolf who is attracted to Sookie's newfound strength and independence as a vampire.
If it's a crossover with the Percy Jackson universe, Percy himself could be interested in Ruby. They both have a sense of adventure and a desire to protect their friends. Annabeth might find herself drawn to Weiss because of their shared intelligence and strategic thinking. Leo Valdez could have a crush on Yang due to her mechanical skills and fiery personality. And Nico di Angelo might be intrigued by Blake because of her mysterious nature. These could all be great potential love interests in a RWBY - Percy Jackson crossover harem fanfiction.
Ezra might also be a possibility. He could be involved in a complex relationship with Spencer where he has to deal with her pregnancy and all the emotions that come with it.
There could be an older, more mature character, like a college student who she meets by chance and who is drawn to her unique charm and innocence.