He might be shocked. In fanfiction, the future could be full of strange twists. For example, if his friends' children are involved in some wild adventures that are very different from what he expects. He would probably be confused at first, then curious to understand how things got to that point.
A good 'Harry Potter' angst fanfic often has a deep understanding of the characters. For example, if it's about Harry, it should capture his complex feelings like his loneliness and the burden of being the Chosen One. It should also have a well - developed plot that ties into the existing 'Harry Potter' world. If it's just angst for the sake of it, it won't be good.
Well, a prevalent theme in 'Harry Potter angst fanfic' is identity crisis. Characters often struggle with who they are, especially after going through traumatic events. For instance, Ron might question his place among his friends or in the wizarding world in general. Another theme is broken relationships. We see fics where friendships or romantic relationships are strained due to various reasons, like misunderstandings or external pressures. And the theme of fear is also quite common. Fear of the unknown, fear of losing more, which is very much in line with the overall atmosphere of the original 'Harry Potter' series.
One of the highly angst - filled ones could be those that focus on the post - war trauma of the characters. For example, fanfictions where Harry has to deal with the loss of his friends during the war and struggles with survivor's guilt. Another might be about Snape's unrequited love for Lily, delving deep into his pain and the angst of his situation.
The beauty of Harry Potter reacts fanfiction lies in the exploration of the characters' personalities through their reactions. It can show us sides of them we may not have seen in the original books. In some fanfictions, Harry might react with anger when he discovers that certain events in the wizarding world were kept from him. This reaction can then drive the plot forward, leading to new adventures and conflicts. Also, the reactions of the characters can help to build new relationships or strengthen existing ones within the fan - created narrative.
One great 'Harry Potter' angst fanfic is 'The Lost Prophecy' which delves deep into Harry's inner turmoil after Sirius's death. It shows his struggle with his destiny and the weight of the prophecy in a very emotional way.
You can start by looking on popular fanfiction websites like Archive of Our Own (AO3). Use the search filters to look for tags related to angst, like 'angst', 'trauma', 'heartbreak' etc. combined with 'Harry Potter'. Another way is to join Harry Potter fanfiction communities on platforms like Reddit or Tumblr and ask for recommendations for the most angst - filled ones.
One popular 'Harry Potter angst fanfic' is 'The Lightning Letters'. It delves deep into the emotional turmoil Harry experiences after the war. Another is 'Shadows of the Past' which focuses on Hermione's inner angst as she copes with the changes in her life post - Hogwarts. There's also 'Broken Bonds' that shows Ron's struggle with his identity and relationships within the wizarding world.
The main difference is that fanfiction allows for more creative interpretations. In the original series, J.K. Rowling had a set vision. But in Harry Potter reacts fanfiction, the writer can make the characters react in ways that might not be in line with the original. For example, Harry could be more cynical or less trusting in fanfiction.
There's also 'Fractured Hearts'. Here, Harry is forced to go on a dangerous mission right after getting engaged to Ginny. The separation and the constant fear for each other's lives create a lot of angst. The way the author writes their love for each other, which endures through all these hardships, is really engaging.