I love this idea. I agree, there are platforms like SkillShare but none really curate YT videos that are actually good. If possible try to include captions bc many people use them on yt and will be a small feature people expect. I would try to build up a group of people who are avid YT viewers to help you find videos for all categories. Also including a section for beginner, intermediate, and advanced would be awesome - bc learning python from the start isn't optimal for an advanced programmer.