Lubos Motl praises a series of 3 elementary videos.
I also recommend Quantum Mechanics Isn’t Weird, We’re Just Too Big | Qiskit Seminar Series with Phillip Ball. Ball is a well-known science writer.
I am sure that there are many others. There have been good textbooks since 1930. Just be wary of anything talking about cats, parallel universes, and nonlocality.
There are lots of good videos on relativity, but I have a quibble with this one on general relativity mishaps. Most of it is about distinguishing the time dilation from velocity, which it calls special relativity, from the time dilations from gravity, which it calls general relativity.
He says that if the GPS satellites were the right height, the the effects would cancel out.
All that is correct, except that both time dilations are part of what used to be called special relativity. You don't need any metric geometry, and Einstein derived the gravity time dilation from just special relativity.
Some people say that special relativity is just about constant velocities (ie, uniform motion), but it was applied to accelating objects from the very start. The GPS satellite is just an accelating object. So is the ground receiver, if you figure in the acceleration of gravity.