Hello there, There is a great facilitator by the name of Melissa D. White that could be of assistance in this area. She is the owner of The Activation Hour. https://www.theactivationhour.com

I have implemented this in my organization (past and present). I can connect you to my colleague Sherwin Chu. She is brilliant.

https://www.linkedin.com/in/sherwinchu.

I teach public speaking via zoom for groups.  I work 1:1 or with groups in a six week format.  I had a viral TEDx talk and have since started offering classes for others.  Clients of mine have gone on to conference stages, became a nonprofit executive director after winning a pitch fest, as well as parents of LGBTQ+ youth that needed to speak at school board meetings.  You can find more info here.