Storyblok

Storyblok is also a web service, so you only need to register an account to create a project. It is more difficult to use than Contentful, but has more room for customization. In addition to the main entities, here it's possible to make auxiliary ones to use as components of the main entities. Storyblok allows grouping entities and content independently.

Also, this CMS has a unique feature. It can include your code on the frontend to see a preview of the content being created, which is important for content managers.

Of course, Storyblok has some flaws. It's not beginner-friendly, so a bit of learning is required to understand its interface. Then, it is only available in the paid version. Storyblok also has restrictions for entities, content, and files, but they are much wider than in Contentful.

Finally, Storyblok is a good CMS if you have fairly complex data structures in your project and want to fine-tune them.

Headless WordPress

A headless WordPress site is one that uses WordPress for content management and a different, personalized frontend stack to show material to site visitors.

Headless WordPress can be readily incorporated into many different "stacks" by eliminating the front end. An app's or digital product's stack is essentially its framework.

With Headless WordPress, a marketing team and content team may keep using their familiar WordPress interface, while the development team can continue using their favorite technologies, like React and GraphQL, in a workflow that is known to them with Git.