Magento, Online, Part 1: July 13, Part 2: July 20, 2019: https://magento.com/blog/magento-news/magento-community-speaker-workshop
Drupal, Online, Part 1: September 21, Part 2: September 28, 2019: https://www.drupaldiversity.com/blog/2019/registration-open-speaker-diversity-workshop-set-september-21-and-28-2019
WordPress (for Meetup & WordCamp organizers), Online, held 1-2 times a month: https://make.wordpress.org/community/handbook/meetup-organizer/event-formats/diversity-speaker-training-workshop/