Besides WWDC videos & documentation, Apple also has interactive tutorials and books. Below are some of my favorites learning resources
Tutorials
Introducing SwiftUI: SwiftUI is a modern way to declare user interfaces for any Apple platform. Create beautiful, dynamic apps faster than ever before.
Develop apps for iOS: Learn the basics of Xcode, SwiftUI, and UIKit to create compelling iOS apps.
Develop in Swift: Develop in Swift Tutorials are a great first step toward a career in app development using Xcode, Swift, and SwiftUI.
Besides WWDC videos & documentation, Apple also has interactive tutorials and books. Below are some of my favorites learning resources
Tutorials
Books