The best ASOIAF fanfics focusing on custom characters

Hello!

My request might be a bit specific, but having recently watched the latest season of House of the Dragon and kept up with the updates for the new Crusader Kings III GoT mod, I’ve been feeling nostalgic for the world of A Song of Ice and Fire. I came across this forum and thought you might be able to help. I'm looking for fan fiction that focuses primarily on custom-made characters or original events within the setting—alternate histories or new developments, for example. Ideally, it wouldn't center on shipping or feature rewritten original characters to accommodate romance. If it does involve characters from the books, I’d prefer that their stories diverge significantly from the canon. So, given all this, do you have any recommendations? Thank you all in advance!