Docusign is what we use.
There are several companies that you can use for this. They will all have a fee. Pick the one that feels right for you and your business.
https://www.gartner.com/reviews/market/electronic-signature/vendor/docusign/product/docusign-esignature/alternatives
Eventually as your company grows, you will want an electronic signature. It is one of the costs of doing business. This is the current pricing structure of Docusign.
Most people don't have a problem paying for a Netflix subscription, but for a lot of health coaches as they are starting out and not realizing they are running an actual business and businesses have expenses and they complain about these costs to generate their revenue.
So I recommend getting an e-signature AT SOME POINT, but there are so many other little details at the beginning, that this is not critical in those first "friends and family" clients that 98% of our clients start with and many coaches are unfortunately, starting their business ultra lean - like choosing between food, shelter and creating their thriving business.
I don't want this to be one more "excuse" people use to not get started having clients. They already use modules, websites, logos, the weather, the season, etc. etc. as a stall tactic.
Technically as soon as you know your niche in module 2, people can get clients - especially after module 4 with a power statement. EVERYTHING else can get filled in later and easier while you are actually leading with love and giving from a place of heart-centered service.
So be good for you. We have been happy with docusign. But we have not investigated a lot as it has not been worth our time to do so but feel free to do your due diligence on this.