Here's two I came across: Programming Graphics 1, 2, 3, Joshua Davis, skillshare.com Creative Coding with Canvas & WebGL, Advanced Creative Coding with WebGL

Here's two I came across: Programming Graphics 1, 2, 3, Joshua Davis, skillshare.com Creative Coding with Canvas & WebGL, Advanced Creative Coding with WebGL & Shaders, Matt DesLauriers, frontendmasters.com