The 'trouble with imps' in a Harry Potter fanfic might also be about how difficult it is to control or get rid of them. Imps are not as powerful as some other magical creatures but they are very tenacious. If they've infested a certain area of Hogwarts, like the Forbidden Forest or an old, unused classroom, it would be a headache for the teachers or the caretaker, Filch. They might try different spells to banish the imps, but the imps keep coming back, causing continuous trouble.
In this kind of fanfiction scenario, Snape might initially be conflicted. On one hand, he has his long - standing dislike for James Potter, Harry's father. But on the other, his sense of duty as a Hogwarts professor could kick in. He might reluctantly start to heal Harry, all the while muttering under his breath about how much trouble Harry always seems to get into, just like his father. Then, as he heals Harry, he might start to see some of Lily, Harry's mother, in him and soften a bit.
There could be. Fanfiction writers are known for their ability to combine the most unexpected elements. Samehada is a very unique element from the Naruto universe and Harry Potter has its own rich world. Some writers might have been inspired to create a story where Harry Potter somehow finds Samehada. You could start your search by using very specific search terms on fanfiction search engines. If it exists, this kind of fanfiction would likely be in the crossover section of the relevant platforms.
In a fanfic, Harry might be having trouble sleeping because he senses a new dark force approaching Hogwarts. He lies awake at night, listening for any strange noises. Ron tries to cheer him up by telling him funny stories from their previous adventures, but it doesn't really help. Eventually, they decide to explore the Forbidden Forest at night to find out what's causing his unease.
I'm not sure specifically as there could be many different takes in fanfics with this title. It might be about Harry Potter getting into all sorts of problems and troubles that are not part of the original story. Maybe he has issues with new magical creatures, or problems within Hogwarts that are unique to this fan - created narrative.
His best friends Hermione and Ron would surely be there to help. Hermione with her vast knowledge of magic could research about the egg, and Ron with his loyalty would stand by Harry's side in any danger related to the egg.
Hagrid would be a likely helper. He has a great knowledge of magical creatures and would surely know a lot about phoenix eggs. He could give Harry advice on how to take care of it.
Dumbledore could also be involved. He's extremely knowledgeable and powerful. He might have some secret knowledge about basilisk eggs. He could guide Harry on whether to keep the egg or destroy it, depending on the greater good of the wizarding world.
Hermione would most likely help. She's always been there for Harry, and with her vast knowledge from books, she could offer a great deal of advice on how to take care of the dragon egg. Ron might also be involved. Despite his initial fear of things, he has a brave heart and would probably stand by Harry's side.
In the 'Harry Potter finds Potter Manor' fanfiction, Harry's journey to the manor could be a very emotional one. He has grown up not knowing much about his family heritage. When he finds the manor, it could be in a dilapidated state. He then starts to restore it, using his magic skills. As he delves deeper into the manor, he discovers rooms that hold memories of his ancestors. There might be a room dedicated to his parents, where he can see their early years through enchanted memories. This discovery could strengthen his connection to his family and give him a new sense of identity within the wizarding world.