Developer-wise, I'm really enjoying Wagtail. I've been using it for a few small-ish projects, and from a user standpoint, it's also quite lovely. That said, I don't know what it'll be like if/when the content and content team gets larger.
I really like the Umbraco CMS. It starts off as more of a blank slate that you get to shape the way you want it to work. Unlike Wordpress that you have to force into the awkward shape to get structured data.
My "favourite" CMS is TakeShape. It's a general purpose headless GraphQL CMS and static site generator. I'm a little biased because I'm one of the Co-founders of TakeShape. But we've worked hard to try to strike a balance between developer UX and content producer UX to build something that helps everyone be more creative.
I like Camaleon. It's a Wordpress-style CMS for Rails.
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