There are fanfictions where the dragon egg is a gift from the Old Gods to Jon Snow. When it hatches, the dragon has unique markings that are related to the Stark family. This creates a bond between Jon, his Stark heritage, and the magic of the dragon, leading to new alliances and a different path for his character than in the original series.
In some fanfictions, the dragon egg might be the key to uniting the North and Daenerys. Jon Snow, being a Targaryen in some theories, has a special connection with the egg. It could hatch a dragon that recognizes Jon as its true master and helps him in his battles for the Iron Throne and the protection of the realm. This would be a major turning point in the power dynamics of Westeros.
Daenerys Targaryen could be one to help. Since she has experience with dragons, she could give Jon Snow advice on how to care for the egg and hatch it.
A great plot could be that the dragon egg was placed in Jon Snow's path deliberately by someone with a grand plan. As Jon Snow delves deeper into the origin of the egg, he uncovers a conspiracy that dates back to the time before the events of the main 'Game of Thrones' story. Along the way, he forms an unlikely alliance with a group of characters, all while protecting the dragon egg from those who would use it for destruction.
Well, in this fanfiction, it's possible that the dragon egg has some special connection to Jon Snow's true parentage. It could be a sign of his Targaryen heritage, if we follow the theories. He could then use the dragon that hatches from the egg to fight against the White Walkers, as dragons are very powerful creatures in the 'Game of Thrones' universe.
Jon Snow could interact with the dragon egg through his dreams. In the fanfic, the egg might communicate with him on a spiritual level while he sleeps. These dreams could give him clues about the egg's power and what he is supposed to do with it. Also, he may touch the egg and feel a jolt of energy, which makes him realize that there is something truly special about it.
One interesting 'Jon Snow a dragon' fanfic could be where Jon discovers he has a hidden dragon bloodline. This could lead to him having the ability to communicate with dragons in a way no one else can. Maybe he forms a special bond with Drogon, for example.
One interesting 'Jon Snow dragon' fanfiction could be where Jon discovers he has a hidden connection to dragons, perhaps through some ancient Targaryen bloodline twist. In this story, he might be able to communicate with the dragons in a unique way, leading to him taming a wild dragon and using it to fight against the White Walkers. It could add a whole new dimension to his character arc.
One interesting idea could be Jon Snow having a special bond with the white dragon. Maybe the dragon sees in Jon a kindred spirit, someone with a strong will and a sense of justice. It could lead to Jon having new powers or abilities through this connection.
One interesting 'Ice Dragon Jon Snow' fanfiction could be where Jon Snow discovers his hidden ability to communicate with ice dragons and uses it to protect the North. Maybe in this fanfic, he forms a special bond with an ice dragon hatchling and they grow together to face the threats beyond the Wall.
In some 'Jon Snow Dragons' fanfiction, the dragons might be the key to Jon Snow's true identity. Maybe he is actually part of an ancient bloodline that has a special bond with dragons. As he discovers more about his connection with the dragons, he also uncovers secrets about his family and his destiny. This could lead to a whole new arc in his story where he has to come to terms with his new - found heritage and use it to save Westeros from impending doom.
In some 'Jon Snow harem fanfiction', the harem might consist of characters who are magically bound to him. Maybe they are all part of an ancient prophecy that links their fates to Jon's. This could lead to all sorts of adventures and political intrigue as Jon has to manage not only his new relationships but also the power dynamics that come with having such a diverse group of women around him.