There's Hugo (mentioned elsewhere ITT) and I hear it's pretty good. If I were making my own personal site that I was going to spend a lot of time on and I was more into Go than I am (I like Go but prefer Node.js) I'd totally use it.

But if you need a site spun up for something and it's not the main focus of your business, shooting for the middle of the market makes a lot of sense. Wordpress is super easy to set up and create pages on, and there are tons of people with expertise in it. It's the kind of thing even non-programmers can administer, which makes it accessible to people who have skills in other stuff like marketing or social media management.