dotCMS might be a bit more popular than Amplience. We know about 1 link to it since March 2021 and only 1 link to Amplience. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I've been using headless CMS for over 4 years now in particular at my company we used Amplience. Initially, we used it to create a t-shirt customization component for one of the Premier League football clubs and host product images. For another client of ours, we've built a component that was a bed configurator to visually present how the end product - with all the options such as size, material, finish etc... - Source: dev.to / about 3 years ago
I am 100% biased, but I would recommend dotCMS (dotcms.com). They are an excellent platform for managing massive amounts of content, and I know a few news sites use them, including some of Thomson Reuters' sites. I know there are a lot good CMSs on the market but this is my $0.02. Source: about 1 year ago
GoFrugal Retail - GoFrugal Retail will help manage day-to-day decisions with control inventory movenements from a central warehouse or at individual stores.
Contentful - You don't need another CMS. You need a better way to manage content — unified, structured, and ready to deploy to any digital channel.
Dor - Dor is a retail traffic counting solution.
Progress Sitefinity - Sitefinity's web content management software is a marketing command center to drive growth for your business. Easily manage multi-site experiences deployed your way.
UniCommerce - Web-based multi channel order fulfillment software.
Mura - Mura CMS is an open source CMS that is both powerful and easy to use.