For children, the best English videos combine catchy music with visual storytelling:
For language acquisition, dual subtitles (English and your native language) or, at minimum, clear English captions are essential. The very best creators provide full transcripts so you can read, listen, and shadow (repeat immediately after the speaker).
He began. "This project. It's a little... stiff. At first. But we just need to push. Push the right way."