Since 'bet' might be a typo, if you mean 'best', I recommend 'The Lord of the Rings' trilogy. It's a classic high - fantasy fiction. The world - building is incredibly detailed, with different races like hobbits, elves, and dwarves. The story of Frodo's journey to destroy the One Ring is full of adventure, friendship, and sacrifice.
Assuming 'bet' is a mistake and you want great fiction, 'The Great Gatsby' is a great choice. Set in the 1920s, it tells the story of Jay Gatsby's pursuit of Daisy Buchanan. The book is full of themes like the American Dream, wealth, and love. Fitzgerald's use of symbolism, like the green light at the end of Daisy's dock, adds depth to the story.