Scrintal vs Obsidian
Scrintal is a visual tool for research-minded folk to keep their flow & concentration. Everything you need in a single tool: brainstorm ideas, manage projects at a glance, outline your thoughts, design your research, present findings, plan your writing, learn something new.
Obsidian is a Markdown-based note-taking powerhouse with excellent note-linking abilities. You can easily build and navigate whole knowledge bases with Obsidian.
Fan of beautiful note-taking apps? 🤔
Maybe Paper is what you're looking for.