In such a fanfiction, it could lead to Harry having a more loyal and protective companion. Dobby's magic and determination might aid Harry in unexpected ways.
At first, Harry might be a bit annoyed by Dobby's antics. But as the story progresses in the fanfiction, he could notice Dobby's good intentions. Dobby's eagerness to serve and protect Harry could touch Harry's heart. Maybe Dobby saves Harry from a particularly dangerous situation that makes Harry see Dobby in a whole new light. Harry then starts to admire Dobby's tenacity. He may also be intrigued by Dobby's strange habits, like his obsession with odd - looking socks. This new - found admiration could lead to Harry becoming a big fan of Dobby.
It's popular because their relationship in the original books is so unique. Dobby is extremely loyal to Harry, and fans like to explore more of their interactions. For example, Dobby always tries to protect Harry from harm.
Often through acts of kindness. Harry might give Dobby a gift, like a new pair of socks, which is a big deal for Dobby. This simple act can start to build a bond.
In fanfiction, when Harry befriends Dobby, it shows Harry's kindness. Harry doesn't see Dobby as just a house - elf, but as an equal. This friendship can also lead to unique storylines. For example, Dobby might use his knowledge of the Malfoy family to help Harry against Voldemort.
A really interesting one is 'Dobby's Grand Adventures with Harry'. Here, Dobby and Harry go on unexpected adventures outside of Hogwarts. Dobby's knowledge of the wizarding world's hidden places comes in handy. They discover ancient magic artifacts together and Dobby's quick thinking often saves Harry from danger. It's a fun and exciting read that shows their friendship growing stronger.
His loyalty to Harry could intensify. Knowing that Harry is his owner in this fanfiction, Dobby would likely double down on his efforts to protect Harry. This could lead to him making sacrifices he wouldn't have considered before. He might even put himself in more dangerous situations to ensure Harry's safety.
Dobby's character could be developed further by showing his growth in confidence. After being freed, he could become more assertive in his actions and decisions, not just relying on his loyalty to Harry but also on his own sense of right and wrong.
A great Harry Dobby fanfiction could be set during the holidays. Dobby, who has a soft spot for Harry, tries to make Harry's Christmas at Hogwarts special. He decorates the Gryffindor common room with magical ornaments and cooks delicious magical treats for Harry and his friends.
One common theme is loyalty. Dobby is extremely loyal to Harry, and this is often explored in fanfiction, like how he's willing to risk his life for Harry. Another theme is freedom. Since Dobby was a slave elf and then became free, stories may focus on how he enjoys his new - found freedom and how it affects his relationship with Harry.