I have recently finished reading Writer's Workshop by Stephen Koch. It was a pretty great read and much more informative than the usual Wattpad guides. The book also gave a list of plenty of great books about crafting fiction:

Poetics - Aristotle

On the Sublime - Longinus

Bird by Bird - Anne Lamott

Becoming a Writer - Dorothea Brande

Aspects of the Novel - Edward Morgan Forster

The Craft of Fiction - Percy Lubbock

Writers on Writing: The Paris Review Interviews

Playwrights at Work

Beat Writers at Work

Women Writers at Work

The Writer's Chapbook

Letters to a Fiction Writer - Frederick Busch

On Becoming a Novelist - John Gardner

The Art of Fiction - John Gardner

On Moral Fiction - John Gardner

Zen in the Art of Writing - Ray Bradbury

How to Write a Novel - John Braine

Narrative Design - Madison Smartt Bell

Plotting and Writing Suspense Fiction - Patricia Highsmith

On Writing: A Memoir of Craft - Stephen King

One Writer's Beginnings - Eudora Welty

The Writing of Fiction - Edith Wharton

Inventing the Truth: The Art and Craft of Memoir - William Zinsser

How to Write - Richard Rhodes

The Forest for the Trees: An Editor's Advice to Writers - Betsy Lerne

A Writer's Notebook - Somerset Maugham

If there's a public library near you, you can research for these titles and see if you can find any. Trust me, you won't regret getting invested.

If you're looking for something easier to find and quicker to read, it probably shouldn't hurt to find a Wattpad guide. Although most of the Wattpad guides aren't very informative, they have the superpower of making ideas emerge on your head (just like the above titles do).

EDIT: Sorry, format.