Drupal, Training, Online, November 16, 2019:
https://www.drupaldiversity.com/blog/2019/learn-how-hold-your-own-speaker-diversity-workshop-saturday-november-16
Magento, Online, Part 1: January 11, Part 2: January 18, 2020 +
Magento, Training Online, May 2, 2020:
https://magento.com/blog/events/magento-community-diverse-speaker-training
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/