Communication is hard to optimize. Communication is modelling/designing information.
There are many methods of communicating.
Here are some good formats for communicating, and some of their tradeoffs.
Open house, let people experiment and try
Show & Tell presentations using prototypes
Growcast/Modcast/making with the garage door open
Figma board for communication
Data Science Notebooks
Guesstimate estimates
Explorable Handbook
Video
Programs + Data
Blogposts
Podcast