I can highly recommend Paul Hudson's courses, eg, Hacking with macOS -https://www.hackingwithswift.com/store/hacking-with-macos https://www.hackingwithswift.com

I can highly recommend Paul Hudson's courses, eg, Hacking with macOS -https://www.hackingwithswift.com/store/hacking-with-macos https://www.hackingwithswift.com/store/hacking-with-macos. They are heavily Swift-focused by very good.