Notion vs Roam vs Obsidian
Notion
Notion can be used as a note-taking app, a project management tool, a wiki, a database, and more. It's a powerful all-in-one app that can be used for a wide range of purposes. Teams of all sizes use Notion to collaborate on documents, build knowledge bases, and even schedule automations.
Roam Research
Roam Research is the original networked thought note-taking app. It is a note-taking powerhouse with excellent note-linking abilities. You can easily build and navigate whole knowledge bases with Roam.
Obsidian
Obsidian is a Markdown-based networked note-taking app similar to Roam Research. It is faster than Roam, and has a way better mobile app. That said, it is much weaker than Roam in a other areas such as block references and linked references.
Fan of note-taking apps? 🤔
Maybe Paper is what you're looking for.