What is most "effective" depends on your audience, along with your capabilities (which appears to be vast).

Some demographics are better at receiving information auditorily, while others may be better with something visual.

If it's a large topic, breaking it down into smaller works (writings, videos, presentations, or whatever) will help.

Sometimes one medium folds into another. A written instruction can be the "first draft" script for a video, as an example.

I look forward to what you have to share!