multi-site network & child themes

I'm launching a new service for clients, instead of doing individual wp sites, I've built a multi-site network & using WPMDEV themes as per this article https://premium.wpmudev.org/blog/web-hosting-design-business-wordpress-multisite/

I'm going to use the divi theme from elegant themes as the base theme for sites.

I'd like advice on how best to configure this with child themes. Should I create a child theme for each seperate site in the multi-site network? If so, is there a quick way to do this workflow wise.