Lots of good suggestions here, but a lot of them are for complex development stacks. My criteria was something that can be installed and ran without having to do much wiring up. That being said I do love me an SSG and content API, my own site is Eleventy hooked up to Ghost.

Also saw some suggestions like Drupal and Joomla, I may add these but from personal experience I've almost always been migrating away from them. There's a reason they're popular though.

Ps. Sorry if you got upset about the political spin, but it's not escapable. Tech is not exempt from politics.