You can now buy Divi child themes, layouts, and plugins in the official Divi marketplace run by Elegant Themes.
A Divi example for staff scheduling and management software from Shiftboard
"Scheduling and workforce management software to create the best schedules, simplify tracking and reporting and handle the unexpected."
This Divi Theme website uses the following plugins;
Easy Social Share Buttons3
Easy Twitter Feed Widget
WP Super Cache