do you have any suggestions for people like myself, who aren't interested in or are not capable of building their own proprietary static site generator? Any tools that meet similar needs to those that gatsby meets that you would recommend and why?

Just out of interest; what are the needs Gatsby needs that you need? Static site generation can be done with WP plugins, I guess most other CMS's also have plugins for it and there are many (way too many) open source static site generators. So you are not just talking about that; what needs does it fulfill for your case that you want to use Gatsby for. I am asking as I have read the comments and the homepage and to me it looks to fulfill a strange niche: to make a static content site 'with the latest tech' and you have to be a programmer to do it. Feels to me like the worst of all those worlds besides not having to deploy anything, but that's also normal these days (wordpress.com, wix etc). What is the business case for my company to prefer this?

What language / stack do you know or use the most? go to staticgen.com and filter by your preferences. I used sculpin as it's really simple and for static landing pages you don't have to mess with many things. I tried gatsby, and to include an script on the head (the gtm js) you have to use a plugin or escape the script and include on helmet. I also used docfx indirectly to make automatic documentation pages for dotnet apis and it worked flawlessly, however I didn't have to do anything special on it, which is where the problems start to appear.

For almost any stack, you could use Puppet and headless chrome, it's a fairly simple setup. Pump it thru headless chrome and store the static output.

https://developers.google.com/web/tools/puppeteer/articles/s...

Wordpress has plugins that can export the site as a static site.