Contentful vs Obsidian Publish

Contentful is a headless CMS platform that separates content management from presentation layer, enabling content delivery to any channel through APIs. It provides a flexible, API-first approach to content management for modern applications.

Obsidian Publish is Hosting service that publishes Obsidian vaults as websites with graph view, search, and custom domains.. It is available under a paid model. This tool falls under the cms category.