The Feynman lecture series on physics were great.
As are his books.
And the lecture series was on YouTube, the last I looked. Worthwhile for sure.
I have them all including videos of his lectures.
I was at Caltech in a JPL capacity back in the day, 1980s to early 1990s. Fascinating place, fascinating people, unlike any university or research complex found anywhere. It was unique. The people there didn’t like degrees or fields of specialization. Everything, everyone was expected to start from scratch no matter what others might call them; chemists were mathematicians, physicists were statisticians, biologists were engineers, everyone was an engineer of sorts.
Students could apply to Caltech and most never heard back, at least during my day. It seemed matriculation was an invitation-only affair, a side thought. If one was invited to be a student, the first day might not even be a class but a working garage like in a Quonset hut where an engineer might be gracious enough to refer to the student by a first name and say “over there on the shelf, see that green colored cord, could you hand it to me? Thanks.” Then work would start on something unknown to the student and that was the course of instruction, to listen and participate.
Feynman’s lectures were much the same, a gathering rather than a class. Exams and homework were a nuisance.
I’ve always been a fan. I’ve got the lectures, inherited IIRC, from my Mom, and I have, and have read SYJMF.
Of course, his attraction is his simplicity and directness, not to mention his brilliance, which he does not flaunt.