To write good best quest fiction, you need to focus on the journey. Make it full of twists and turns. Let's say your character is on a quest to find a lost treasure. Along the way, they discover that the treasure has a curse. Also, develop the relationships between characters. In a quest, the companions can either help or hinder the protagonist. And don't forget to give the quest a meaningful purpose. It can't just be about finding a shiny object; it should have deeper implications.
First, create a compelling protagonist. The character should have a clear goal for the quest. For example, like Frodo in 'The Lord of the Rings' who wants to destroy the ring. Second, build an interesting world. A world full of strange creatures and places makes the quest more exciting. Third, throw in various obstacles. These can be physical, like mountains to climb, or mental, like difficult decisions to make.