Yes, there are some out there. You can start by looking on fanfiction platforms like Archive of Our Own. Just search for 'bellatrix is harrys mother' in the search bar and you'll find a variety of stories. However, keep in mind that these are fan - created works and may vary greatly in terms of writing quality and how they handle this rather unique concept.
Yes, there are some fan fictions that explore a romantic relationship between Voldemort and Harry. However, this is a very unconventional and often controversial concept within the Harry Potter fandom, as Voldemort is the main antagonist and his actions are extremely evil in the original story.
I'm not sure if there is such a specific fanfiction with that exact title. Fanfiction can cover a vast range of themes and ideas, but this seems like a rather unique and perhaps not very common one. It might be difficult to find, if it exists at all.
Fans of the original work that Harry is from might be interested. They could be curious to see an alternate take on his character, even if it's a rather unflattering one like this 'whore' concept. It could also attract those who like exploring the darker or more controversial sides of a character.
There's a good chance that his friends like Ron and Hermione would also be main characters. They were always by his side in the original series and would probably play important roles in this fanfic as well, perhaps helping Harry explore and understand his new - found aspects of his magic.
The fanfic might focus on the relationships between Harry's future children. For example, they could have sibling rivalries or strong bonds of friendship. They might also have different personalities - one could be really outgoing and brave like Harry, while another could be more shy and studious. And they would all be growing up in a world that's still recovering from the war, so that could add a lot of depth to their stories.
Well, in these fanfics, a very common theme is the passing down of values. Harry has certain values from his own experiences, and in the fanfics, we often see how he tries to pass them on to Victoire. Another theme is the exploration of the wizarding world from a new perspective. Since Victoire is of a new generation, the fanfics can show different aspects of the wizarding world that were not explored in the original series. Also, the theme of self - discovery is quite prominent. As she grows, she discovers her own strengths, weaknesses, and what she truly wants in life, all while being Harry Potter's daughter.
It could be Hermione, if it's related to the Harry Potter universe. She is extremely brainy and would fit the description well. There might also be other new female characters who are introduced specifically in this fanfic to add more depth to the story.
The uniqueness lies in the fact that Bellatrix has such a different personality and background from what we would expect for Harry's mother. In the original story, his mother was loving and self - sacrificing. But with Bellatrix in that role, it creates a whole new set of possible storylines. It can lead to exploring how Harry might have turned out growing up with a dark - sided mother, and how that would affect his relationships with other characters like Dumbledore or Ron and Hermione.