It really depends on the fanfic. Sometimes it could be Norbert, the dragon that Hagrid had. Since we already know about Norbert from the original books, it's easy for fanfic authors to bring him back as a protector. Another common one might be a wild dragon from the Forbidden Forest that has a special bond with Harry for some reason.
Well, in some fanfics, the dragons might be portrayed as fierce yet loyal guardians. They could use their size and fire - breathing abilities to scare off enemies. For example, they might circle around Harry, creating a ring of fire to keep the dark wizards at bay.
One possible person could be Hermione Granger. She is Harry's best friend and has always been by his side, using her intelligence and magic skills to help him out of difficult situations, which is a form of protection.
Well, in a Harry Potter dragon lemon fanfic, the lemon could be used as a magical ingredient. For example, it could be part of a potion that helps tame the dragon. And perhaps the dragon is a new species that has a connection to the lemon - filled areas of the wizarding world. It could also be a story where a lemon - loving character tries to befriend the dragon using lemons.
In many fanfics, the members of Team 7 protecting Harry Potter can be quite diverse. Sometimes it might include some minor characters from the original books who are given more prominent roles, such as Luna Lovegood. There could also be characters from other houses in Hogwarts that band together. And, of course, as mentioned before, the author might introduce brand - new characters with unique magical abilities or traits to form this Team 7.
Well, perhaps he uses his magic skills. He could cast protective spells around the Starks' territory, like a powerful Fidelius Charm to keep their location secret from their enemies.
One way is to respect the original work's lore. When creating fanfic, make sure not to distort the core elements of the Harry Potter universe. For example, don't change the basic rules of magic like how spells work without a good reason. Also, always give credit to J.K. Rowling as the original creator. This shows respect for the intellectual property rights that underlie the Harry Potter franchise.
Dragons in 'Harry Potter' fanfics often serve as powerful and mysterious elements. They can be used as a plot device to introduce danger or adventure. For example, a dragon might be guarding a hidden treasure or a powerful magical object. In some fanfics, characters might form bonds with dragons, like in the books where Hagrid has an affinity for dangerous magical creatures.
One popular 'Harry Potter speaks to dragons' fanfic is 'The Dragon Whisperer'. In this fic, Harry discovers he has an unexpected ability to communicate with dragons which sets him on a whole new adventure. It's full of exciting encounters and new magical elements.
Adventure is a very common theme. Just like in both the original Harry Potter series and Dungeons and Dragons, the characters go on quests, face challenges, and explore new places.