I love recommendations. I prefer lengthy one-shots compared to multi-chaptered, but if it's good, it's good :)

Harry Potter

• Japanese Blossoms by inadaze22
• Blindsided by secretdiary
• Bewitchments and Charmes by sshg316
• Silencio by AkashaTheKitty
• Love, Your Secret Santa by Slytherinlinzi
• The Revenant by atalanta84

Cardcaptor Sakura

• Gallery of Broken Hearts by Mitsukaii

Avatar: the Last Airbender

• Katara Alone by mystic-water

Ouran High School Host Club

• City by Sanada