Are there any alternatives to DocuSign that can be integrated into Shopify?

[MsSkeptical]

Hey all, I found some threads about electronic signatures but it seems like it's been posted years ago. 

Also the thread didn't have an asnwer yet.

https://community.shopify.com/c/shopify-discussions/docusign/m-p/296988

https://community.shopify.com/c/shopify-apps/digital-signature-form/m-p/512780

I was wondering if there are any integrations into Shopify with some coding and magic? I saw a blog about how to integrate esignatures on documents (PDFs) but it did not mention how to integrate it to certain hosting sites like Shopify to ease the burden of sending it out manually.

Also, I find DocuSign quite expensive... are there any alternatives to it? I know Panda Doc, Juro, and Hello Sign but I'm looking for something at a lower price range.