In my practice, online speech coaching in English appears to be successful. Please go to these presentations

https://soundcloud.com/janny1-1/win-20201109-13-42-32-pro translation poem Havenhart by Derek Otte

https://www.fempeak.ai/profile/jannykok

to learn more. My maritime knowledge has proven to be an added value in teaching. Having said that, being multifunctional as a journalist has also added value to my work as an individual speech coach in English. Employers of Royal Haskoning and Chemship can confirm that.