Another option is Wattpad. Although it has a wide range of content, including a lot of Harry Potter fanfiction. You can look for stories with the relevant character names. However, be aware that the quality can vary more on Wattpad compared to the other two platforms. But it's still worth exploring as you might come across some unique and interesting takes on the relationship between Harry, Lucius and Voldemort.
You can start by looking on fanfiction.net. It has a large collection of fanfictions, and you're likely to find a good number of 'Harry and Lucius' ones there. Just use the search bar and type in the relevant keywords.
You can try some dedicated Harry Potter fanfiction forums. These often have threads where fans recommend their favorite Lucius x Harry stories. Additionally, Tumblr has a lot of Harry Potter fanfic communities. Some users post links to their favorite stories or even write short fanfics themselves, so it's worth checking out.
Finding the 'harry owns lucius fanfiction' can be a bit of a search. Firstly, check AO3 as it's a huge repository for fanfiction. They have a great search function that allows you to be quite specific. If that doesn't work, try FanFiction.net. You might also want to look into social media groups dedicated to Harry Potter fanfiction. There are often discussions about unique fanfictions in these groups, and someone might be able to point you in the right direction. However, bear in mind that not all fanfictions are of equal quality, so you may need to sift through a few to find what you're looking for.
You can try looking on websites like Archive of Our Own (AO3). It has a large collection of fanfictions covering various themes and pairings. Another option could be Fanfiction.net, though AO3 is generally more inclusive and has a better tagging system for finding specific types of fanfiction like this.
Another option is to ask other Harry Potter fanfiction enthusiasts. You could join some Harry Potter - related forums or groups. There are usually experienced readers who have a wide range of knowledge about different types of fanfictions. They might be able to point you in the right direction and tell you about some great stories with this particular plot.
Another option is to join some Harry Potter fanfiction groups on Facebook. Members in these groups often exchange their favorite fanfictions. You can post a request asking for 'voldemort wants harry' fanfiction, and someone might be able to point you in the right direction.
Another option is to check out some Harry Potter - focused fan communities on social media platforms like Reddit. There are often threads where fans recommend their favorite fanfictions, and you might come across some 'Harry possessed by Voldemort' ones among them.
You can find 'harry defeats voldemort fanfiction' on fanfiction websites like FanFiction.net. There are thousands of stories there, and you can use the search function to specifically look for ones related to Harry defeating Voldemort. Another good place is Archive of Our Own (AO3). It has a large collection of Harry Potter fanfiction, and it's easy to navigate to find the stories you're interested in.
There are also some Harry Potter - themed fanfiction forums where fans might share their own 'voldemort raises harry' stories. One such forum could be The Leaky Cauldron forums. However, the quality and content of the stories there might vary more compared to the larger fanfiction websites. Another option is to ask in Harry Potter fan groups on social media platforms like Facebook or Reddit. Some members might be able to recommend specific stories or their own works.
The relationship might start with Lucius seeing an opportunity in Harry's new identity. He could try to manipulate Harry at first. But Harry, being Harry, might resist and gradually turn the tables. They could end up in a power struggle within their relationship.