Ask HN: What do you use for your CMS / marketing site?

My team build a web app, and we have our stack sorted for that - but we have a self-hosted landing page / marketing site and we want to outsource it's development and allow our non-technical staff to keep it up-to-date.

What do you use? Are there any excellent agencies / development shops that I should know about? Is there anything better than Wordpress? We could also use things like hubspot or instapage.

Virtually all our pages are static, and we don't need payment handling / e-commerce stuff. Just easy-to-update CMS, decent SEO, fast enough loading for good UX.