Very good wrap-up in this video. Michelson-Morley didn’t have a Null result; the usual phenomena that relativity theory explains can be explained classically; the clock paradox destroys the notion of no preferred reference frame; the sources Einstein plundered.
Einstein: The Relativity Fraud
Bonus: All motion is relative! Except rotation! That’s ABSOLUTE! Say relativists! Because that’s what we find after fumbling with our equations! (Wait doesn’t this mean that your own maths shows that there’s no relativity? Nevermind!)