Best legal software to get contract signed on my site?

Hey Hackers! On my platform, I need to have two sides sign a contract.

I know that I can use something like Docusign to set up a template and send to both sides each time. I'm thinking of how to automate this further though.

Is there a software solution that allows you to integrate the document signing on your platform? Or maybe a way to automate this with Zapier/another no-code solution?