They have an annual membership of $40, which offers $5 off classes that range from $10 to $25. They also have a resource section.

https://www.ocww.info/OCWW-workshops

You'll hear from experts in the writing and publishing community. These affordable classes last 60-90 minutes and always include live Q&A. Any questions that they can’t get to live are answered in writing. Afterward, all registrants receive the recording, slides, transcript, Q&A, and other supporting materials that can be downloaded and kept for as long as you wish.

janefriedman.com

Classes featuring enlightening lessons, encouragement, and practical next steps from experts in the writing and publishing community.

janefriedman.com

When you take a class with me, you're getting the instructor's expertise plus my in-depth knowledge of the writing community and publishing industry.

Writer's Digest University offers a variety of online courses that you may find helpful.

In addition to being a great resource for grammar, sentence length, repetitive words and phrases, etc., ProWritingAid also offers learning opportunities. They feature writing education events and a recording library to strengthen your craft, especially if you write fantasy, crime, romance, or science fiction, which each have their own nuances.

community.prowritingaid.com

Explore Event Recordings space in The ProWritingAid Community