CrafCMS. Beautiful back-end, clean, well-structured DIY templating based on twig (or use the built-in API), cheap to host, secure, designed with dev and admin ergonomics in mind, constantly improved. Zero BS of any kind, just considerate design, good engineering, responsive support and community.

$300 for the pro version (adds unlimited users with granular permissions and graphql), free-forever single admin tier.

A solid, rich ecosystem of plugins. Supports headless out of the box.

My experience with it, and with Pixel&Tonic, the intentionally small, solid and profitable company behind it have been beyond delightful.