Top Open-Source Static Site Generators
staticgen.com
staticgen.com
At this point what we really need is a list of static site generator lists.
At staticgen we have far stricter rules of what we accept in the list. See https://www.staticgen.com/rules
That said it's a great list of tools around static web-tech - just not super useful if you're strictly looking for static site generators.
There are License and Language keys for most entries. Sounds like you want to filter out the Commercial and Web ones. If you find any that aren't categorized properly, I'm sure they'd appreciate a PR.
I'm currently adding support for the Skribe syntax that Skribilo uses and it will be available in the next release, after I convert my existing blog to Haunt from Pelican and work out any transition pains.
Edit: it fails rule #1: "The program must be able to output a static website that can be hosted in places like Netlify, S3 or Github Pages"
Seriously - does nobody just do simple HTML sites by hand anymore?
As far as writing + deploying a simple HTML site, it's been 2-3 months since I've done that, if only because no one I contract with or work with wants to spend the time or money on me hand-writing and pushing a site-- templating it and then generating the rest of the site is at least a little quicker than that, and still doesn't come with the burden of using a backend language.
There are probably multiple ways to do it given Medium's clean design and popularity, but that's the way I've done it and I can recommend it.