A popular one is 'Time - Bound Harry and Daphne'. Here, they are forced to time travel by a dark wizard's curse. As they journey through different time periods, they encounter various versions of themselves and their friends. The story is full of action and mystery, with the added element of their relationship which is both complex and endearing.
There's also 'Harry and Luna's Time - Bound Adventure'. This one takes them to different key moments in the wizarding world's history. It's fascinating to see how they navigate through these historical events, and the relationship between Harry and Luna, which is a bit different from the original books, adds an extra layer of intrigue to the story.
I also like 'A Second Chance at Life'. This fanfiction focuses on a character getting a chance to go back in time and correct their mistakes. It's a more emotional take on time travel in the Harry Potter universe. The author does a great job of exploring the character's feelings and how they deal with the knowledge of the future.
One great Harry Potter time travel fanfiction is 'All the Young Dudes'. It delves deep into the Marauders' era with time - travel elements. It has well - developed characters and an engaging plot that keeps you hooked. Another is 'The Time - Turner Trilogy' which plays around with the concept of time - turners in really interesting ways, exploring different timelines and how the characters' actions in one timeline can affect others.
One great 'Harry Potter Time Travel Fix It' fanfiction is 'A Time to Change' where Harry goes back and changes key events. It has a really interesting take on how his knowledge of the future can be used to prevent tragedies.
One great 'Harry Potter Marauders Time Travel Fanfiction' is 'All the Young Dudes'. It delves deep into the Marauders' era and the time - travel aspect adds an exciting twist. The characters are well - developed, and it really captures the essence of the original series.
There's also 'Time - Traveling Trio'. This one focuses on Harry, Hermione, and Ron traveling through time. They get to experience different eras of the wizarding world, from the founding of Hogwarts to a possible future. It's a long and detailed fanfiction that really explores the implications of time travel within the Harry Potter universe.
One great time travel fanfic is 'A Marauder's Plan'. It has an interesting take on how time travel affects the characters. Harry goes back in time and has to deal with the Marauders, which creates a lot of humorous and tense situations.
One great 'Harry Potter x Hermione Time Travel Fanfiction' is 'A Second Chance at Life'. It has a really interesting plot where they go back in time and try to change some of the major events in the wizarding world. The way the author writes their relationship development is quite engaging.
AO3 is probably the best place. There are various filters you can use. For example, you can sort the stories by popularity, kudos received, or date updated. Another option is Wattpad. Although it has a more diverse range of stories in terms of quality, you can still find some really good Harry Potter time - travel fanfictions if you dig a bit. Some Tumblr blogs also recommend and share great Harry Potter time - travel fanfictions.