* Fanfiction.net: This is one of the largest and oldest fan fiction websites. It has a huge Harry Potter community and offers a variety of features, such as the ability to search for stories by genre, character, or pairing.
* Archive of Our Own: AO3 is another popular fan fiction website that has a large Harry Potter following. It offers a more user-friendly interface than Fanfiction.net and allows authors to post stories with more mature content.
* Wattpad: Wattpad is a social media platform that allows users to share their writing with others. It has a large Harry Potter community and offers a variety of features, such as the ability to comment on stories and follow other users.
* Tumblr: Tumblr is a microblogging platform that can be used to share fan fiction. It has a large Harry Potter fandom and offers a variety of ways to share your work, such as text posts, images, and videos.
* Social media: You can also share your Harry Potter fan fiction on social media platforms such as Twitter, Facebook, and Instagram. These platforms can be a great way to connect with other Harry Potter fans and share your creativity.
Once you have chosen a platform, you will need to create an account and then follow the instructions on the website to post your story. Be sure to include a title, summary, and tags so that readers can find your story easily. You may also want to add a cover image or banner to make your story more appealing.
When posting your story, be respectful of the Harry Potter universe and its fans. Avoid using offensive language or content, and be sure to credit the original authors of any characters or ideas that you borrow.
Finally, have fun! Writing fan fiction is a great way to express your love for the Harry Potter series and share your creativity with others.