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.
One way is through his relationships with other characters. For instance, if he befriends Hermione more, she could introduce him to books and knowledge that expand his understanding of the wizarding world. This new knowledge could make him more sophisticated and better able to help Harry in complex situations. Also, his interactions with other house - elves could show his development. If he tries to convince them to seek freedom, it shows his growth from a meek house - elf to a leader of sorts within his community.
Dobby's character could be developed by exploring his magical abilities more deeply. In fanfiction, we could see him discover new powers or refine the ones he already has. Maybe he has a hidden talent for healing magic that he discovers while trying to save an injured Harry. This discovery not only adds to his character but also gives him a new role in the story, as the one who can heal not just physical wounds but also the emotional scars of those around him.
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 becomes more confident. Instead of being a meek house - elf, he has to take on the role of a caregiver. So he has to be more assertive in making decisions for Harry. For example, when it comes to protecting Harry from potential threats, he won't hesitate like he used to.
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.
One interesting plotline could be Dobby using his unique magic abilities to help Harry in a new and unexpected way, like finding a hidden magical artifact that could turn the tide in the fight against Voldemort. Another could be Dobby getting into trouble while trying to protect Harry at Hogwarts, causing a series of comical and heart - warming events.
In some fanfiction, Dobby helps Harry Potter by using his house - elf magic in unique ways. For example, he might create secret passages for Harry to escape danger. Dobby's loyalty drives him to do whatever it takes to keep Harry safe, like magically disguising Harry so his enemies can't find him.
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.
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.
Perhaps Dobby uses his magic in a creative and unexpected way to get Harry out of a tight spot. This display of resourcefulness could make Harry admire him. Also, if Dobby were to share some of his personal stories about the hardships of being a house - elf, it could make Harry respect him more and become a fan. For example, Dobby's tales of how he was treated poorly by his former masters but still remained kind - hearted could be a turning point.
They could be in a time - travel scenario. Harry Potter accidentally takes Rose and Dobby back in time. They have to work together to get back to their own time. Dobby's house - elf magic might be crucial in finding a way back, while Rose uses her modern - day knowledge of magic (maybe she's read a lot about old magic) to help them along, and Harry Potter uses his experience from his own adventures.
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.