While not a magazine used for learning a particular application, I do love Cinefex. A great magazine that goes into professional FX on major motion pictures. They also have an iPad edition as well. What I do get out of that magazine are the discussions on how the artists strived for that last 5% between what looks good to what looks real. That attention to detail in lighting, texturing, camera shake, and the art of putting detail into the scene that you will ONLY notice if it is NOT there. Those are invaluable and very hard to learn lessons.
Unfortunately, what was once a bi-monthly publication has not produced a magazine since June, 2020 due to COVID. If the movies are not being released, then they can't publish the magazine. I hope to get the next issue in February and looking forward to reading up on Season 2 of the Mandalorian....but we will see.
Dave