These are websites that I have found helpful. I will add more from time-to-time.

Craft

Planning your book

A strong “logline” that keeps me on track when outlining, writing, and editing. Without it I don’t write the best possible story. (See https://logline.it/howto/)

Point of View & Perspective

POV and perspective are different. These are some of the best articles I’ve found on them:

All about POV, Which one should you use

What’s the difference between perspective and POV