Tips on adding digital courses to a one-on-one coaching business model?

Hi everyone!

I'm a public speaking and career coach. I currently offering one-on-one private coaching to my clients (via Zoom), and my programs are either six months of 12 months depending on the client's needs.

For clients who do not want to do private coaching, I would love to start developing recorded coaching modules that clients can pay to access and view on their own schedule. Does anyone have any advice on taking a coaching business and developing content into video modules that will attract an audience?

Thanks!