Brilliant beginner Quantum Mechanics with Sabine Brilliant / Sabine Hossenfelder ★★★★★ 4.5 self-paced · interactive · beginner
Coursera intermediate Quantum Mechanics for Engineers (CU Boulder) University of Colorado Boulder / Wounjhang Park ★★★★☆ 4.4 3 courses · ~12 weeks · intermediate
External intermediate Fundamentals of Physics II: E&M, Optics, and Quantum Mechanics (Yale) Prof. R. Shankar, Yale University 25 lectures, self-paced · intermediate