You can try fanfiction websites such as Archive of Our Own (AO3). It has a large collection of fan - created works, and there's a good chance you'll find Bran Cornick fanfiction there.
Another place to look is FanFiction.net. There are many different fandoms represented on this site, and Bran Cornick fanfiction might be among them. Just use the search function to look for it.
You can start by looking on large fanfic websites like Archive of Our Own (AO3). It has a wide range of fanfics from various fandoms, so there's a good chance you'll find some Bran Cornick fanfics there. Another option could be FanFiction.net, which also has a large collection of fan - created stories.
There could be fanfictions that focus on Bran Cornick's relationships with other characters. Maybe a story about his friendship with a previously unconnected character, and how they bond over shared experiences or goals.
I'm not sure of specific Bran Cornick fanfics off the top of my head. However, a common type of fanfic might be a 'What If' scenario. For example, 'What if Bran Cornick had been born in a different era?' This could lead to a really interesting story exploring how his character would develop in a different time period. Or a fanfic could focus on his relationships, like 'Bran Cornick and His Unlikely Friend' which would explore an unexpected friendship he might form.
Some forums specifically for fanfic enthusiasts can also be a great resource. These forums usually have sections dedicated to different characters or works. Check if there's a section for anna cornick and explore the threads there. You might find links to some great fanfics or even get in touch with authors who write about her.
You can start by looking on fan - fiction websites such as Archive of Our Own (AO3). It has a large collection of fan - created works, and you can search specifically for Bran Stark fan fiction. Just use the search bar and type in 'Bran Stark' and you'll get a list of relevant stories.
Fanfiction.net is also a good place to search. There are many different types of fanfics there, including ones about Bran Stark and the reader. However, the quality may vary, so you might need to read a few to find the really good ones.
You might start by checking your local comic book stores. They often carry a wide variety of graphic novels, including some that are more obscure. If they don't have it in stock, they may be able to order it for you.
First of all, Harry's connection to the powerful magic within him, like the magic that defeated Voldemort, could be channeled into Bran. He could try to transfer some of that raw magical energy into Bran's body. Additionally, Harry's knowledge of defensive magic might come in handy. He could create a shield around Bran to keep out any negative influences that might be hindering his healing. Harry could also use his skills in potion - making, learned from Snape's old notes perhaps, to brew special healing potions for Bran.
Don't forget about the dialogue. It should be in - character for both Bran and your OC. Bran is often quiet and thoughtful, so your OC might need to be patient when communicating with him. Also, make sure to add some conflict. Maybe your OC has a secret that could endanger Bran, or vice versa. This will keep the story interesting and engaging for the readers.
There might be some out there. You could try searching on fanfiction - related websites. Some platforms like Archive of Our Own might have such stories. Just be sure to use appropriate filters to find exactly what you're looking for.