I'm not sure about a specific title, but in general, fanfics in this category often play with the idea of Voldemort's control over his followers. They might show how characters are forced to do his bidding, like in some where he uses dark magic to enslave wizards. However, this is a rather dark concept within the Harry Potter fanfic realm.
There could be fanfics where the 'slavery' is more about loyalty and servitude in a non - explicit sense. These might not have any violent or adult - themed elements. They could be more about the power struggle between good and evil with the idea of being a'slave' to Voldemort's cause being a central theme in a family - friendly manner.
There are some out there. Some fanfictions in this theme might explore the dark and complex relationship between Harry Potter and Voldemort in the context of slavery. However, not all of them are well - written. You can start your search on some popular fanfiction websites like FanFiction.net or Archive of Our Own.
One interesting Voldemort fanfic could be those that explore his early years before he became fully evil. Maybe a fanfic where we see his time at Hogwarts and how his dark thoughts started to form. Another could be a story where Voldemort has a chance at redemption, which is quite a different take on his character. And there are also fanfics that focus on his relationship with his Death Eaters in more depth, showing the power dynamics and loyalty within the group.
One common theme is power struggle. Harry, as a slave, tries to resist Voldemort's power. Another theme is the exploration of the dark side. It shows how the dark magic and Voldemort's influence can change Harry's situation. Also, the theme of redemption might be there, like Harry trying to find a way to break free and still uphold good in the end.
Some fanfics focus on the power dynamics between Grindelwald and Voldemort. Since both are extremely powerful dark wizards, exploring who is more powerful or how they could work together is unique. For example, in some fanfics, Grindelwald tries to manipulate Voldemort for his own gain.
Well, a frequent theme is the exploration of the psychological impact on Harry. Voldemort's abuse can be seen as a way to break Harry's spirit, so many fanfics might focus on how Harry copes with that. Some may also have the theme of the wizarding world's reaction to such abuse. Do they believe Harry? Do they support him? And there could be themes related to Harry's growth as a wizard in the face of this abuse. How does he learn to use his magic to protect himself from Voldemort? These are all common themes that might show up in such fanfics.
One popular theme is the power struggle. Fans often write about how Harry and Voldemort vie for control over the wizarding world. Another is the exploration of their magical abilities. Writers might create scenarios where they face off in unique magical duels. Also, the idea of fate and prophecy is common. How the prophecy about Harry being the one to defeat Voldemort shapes their relationship and actions.
I'm not sure if there is specifically such a 'Harry Potter' fanfic. There are countless fanfictions in the 'Harry Potter' universe, and while it's possible, it's not a common or widely - known trope that I'm aware of.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of Harry Potter fanfics, including many that focus on Voldemort. Another option is FanFiction.net. There are also some smaller, more specialized Harry Potter fanfic communities where you might find unique Voldemort - centered stories. Just make sure to read the tags and summaries carefully to find the ones that interest you.
One popular one might be 'The Stolen Boy' where Harry is taken from Voldemort's clutches in a very unexpected way. It has a unique plot where the wizarding world has to deal with the consequences of Harry being in a different situation than in the original story.