It's a nicely designed course, and you can find a version free for any person to take online and receive a certification (with the submission of auto-graded assignments within a certain timeline): https://cs50.harvard.edu/college/2023/fall/syllabus/
The lectures are well-produced and come with detailed lecture notes, though the assignments are technically difficult to complete. You can find the materials for Week 0 on Scratch is at: https://cs50.harvard.edu/college/2024/spring/weeks/0/