Hunting for good, up-to-day WordPress courses

Hi there! I’m obtaining into WordPress development and striving to train myself as a lot as achievable. I get the perception that the WP ecosystem has changed a whole lot around the previous few several years so locating up-to-day programs is complicated. And when I say class I suggest something that addresses a fantastic total of materials and not just a handful of tutorials. Any tips are appreciated. Thanks.

**edit:** Some much more history: I’m a internet developer who’s key labored with Javascript in the previous. I am seeking for sophisticated/in-depth classes. I want an knowing of how matters do the job underneath the hood via PHP so I can start off accomplishing some freelance get the job done.