Elegant Themes offers the Divi theme. Here’s a good video produced by Elegant Themes to get you going with Divi. (The video is dated 2017, but the information provided in the video as been verified as current.)

An actual Divi theme user created a video to get those using Divi up and running, which also comes recommended by Elegant Themes.

For those who prefer to read about getting up and going with Divi, please consult this page.