What are some alternatives?
When comparing Directus and Prismic, you can also consider the following products
Contentful - You don't need another CMS. You need a better way to manage content — unified, structured, and ready to deploy to any digital channel.
Ghost - Ghost is a fully open source, adaptable platform for building and running a modern online publication. We power blogs, magazines and journalists from Zappos to Sky News.
Strapi - Strapi is the most advanced Node.
WordPress - WordPress is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time.
GraphCMS - The GraphQL Headless CMS
Butter CMS - API-first CMS + blog platform built for developers & marketers.