Best Non-Developer Front end?

Hi, We use Snipcart to manage e-commerce across 3 websites for our different wine brands and love it. However, my business partner (not full time) who built our websites from scratch has reached a point in his life/career that he can’t be on call for small changes and updates. I’m curious if you have an opinion on a easy to manage front end platform that Snipcart can easily be plugged into. (Squarespace, Wix, etc). Thanks