I'm not sure who the absolute best - known ones are, but there are some authors who have a large following. Some of them might be those who have been writing in the fandom for a long time and have a consistent style that fans love. They often have a deep understanding of the characters and can create engaging stories that stay true to the essence of Bella and the Beast.
Honestly, it's difficult to single out the best - known authors. But those who are able to capture the charm of the original story while still bringing something new to the table often stand out. For example, an author who can write beautiful descriptions of the castle and the relationship between Bella and the Beast in a fresh and engaging way might become well - liked. There could be some authors who are known within specific fanfiction communities for their take on this classic story.