A really interesting one is 'Fractured Bonds'. Here, Harry is angry at Hermione because he believes she has been keeping secrets from him. It delves deep into their relationship, exploring the themes of trust and loyalty. As the story progresses, we see both characters grow and learn from the situation, and eventually start to repair their damaged friendship.
One popular 'Harry is angry' fanfiction could be 'When Harry's Rage Unleashed'. It explores a situation where Harry gets extremely angry due to some misdeeds against his friends at Hogwarts. Another might be 'Harry's Angry Outburst' which details his reaction to unfair treatment within the wizarding community. There's also 'The Angry Harry Chronicles' that follows his angry moments and how he overcomes the negative emotions through his journey.
In some fanfictions, Harry might be angry with Ron and Hermione if he feels they are keeping secrets from him. For example, if they discover something important about Voldemort's plans but don't share it right away, Harry could get angry. He's used to relying on them and when that trust is broken, even if it's a misunderstanding, his anger can flare up.
One popular 'Angry Harry' fanfiction could be 'Harry's Rage Unleashed'. In this fic, Harry is often angry due to the injustice he sees in the wizarding world post - Voldemort. Another might be 'Angry Harry: The Rebellion', where he rebels against the old - fashioned ways of the Ministry. There's also 'When Harry Got Angry', which focuses on his emotional journey and how his anger shapes his actions.
One common reason is Hermione's over - protectiveness. Sometimes she tries to control situations too much, which can make Harry feel suffocated and thus angry. For example, in some fanfictions, she might try to stop Harry from taking risks in a dangerous mission, which he sees as her not believing in his abilities.
Finding specific 'Angry Harry Alone All Summer' fanfiction can be a bit of a hunt. Some fanfictions might focus on Harry's emotional state during a particular summer when he's angry and alone. It could be a story exploring his inner turmoil, his growth, or his relationships during that time. However, without more context about the origin of this concept (is it a very niche idea within a big fandom or something unique?), it's difficult to point directly to a particular piece of fanfiction. But as I said before, exploring large fanfiction repositories is your best bet.
One great 'Harry Potter angry fanfiction' could be 'The Angry Heir'. In this story, Harry discovers some dark secrets about the wizarding world and his anger drives him to take on the establishment. It's full of intense emotions and action.
One 'angry Harry Potter fanfic' could be those where Harry gets really mad about the unfair treatment he receives at the Dursleys' in some fan - created scenarios. For example, a fic might show him lashing out in a more extreme way than in the original books when Dudley bullies him again.
There's 'Harry and Hermione's Muggle Adventure'. In this fanfic, they find themselves accidentally stranded in the Muggle world without their wands. They have to rely on their wits and the little Muggle knowledge Hermione has. It's full of humorous situations and also some really heart - warming moments as they learn more about each other outside of the wizarding world.
One really funny Harry and Hermione fanfiction is 'The Mischief Makers'. It has them getting into all sorts of comical situations in Hogwarts, like accidentally turning the Slytherin common room into a giant ball pit. Another is 'The Prank War' where they engage in a hilarious battle of pranks against Ron. And there's also 'The Bumbling Brew' which is about their attempts to create a new magical potion and all the chaos that ensues.
One great 'Harry Defends Hermione' fanfiction is 'In Defense of a Friend' on FanFiction.net. It beautifully shows Harry standing up for Hermione against some Slytherin bullies in a very intense yet heartwarming way.