Here are some common documentation and knowledge management tool recommendations:
Evernote：
Evernote is a powerful note and knowledge management tool that can help you save and organize documents, notes, pictures and web clippings, and supports cross-device synchronization and search functions.
Microsoft OneNote：
OneNote is Microsoft's note-taking and information-gathering tool that creates notebooks, pages, and sections for organizing and recording information. It also supports cross-device sync and collaboration features.
Google Keep：
Google Keep is an easy-to-use note-taking and to-do app that helps you quickly record and organize thoughts, lists and reminders. It integrates with Google accounts and can be synced and accessed across multiple devices.
Notion：
Notion is a multifunctional team collaboration and knowledge management platform that can create documents, databases, task lists, project plans and knowledge bases, etc. It has powerful organization and customization features for personal use and team collaboration.
Trello：
Trello is a project management and team collaboration tool, based on the Kanban form, you can create tasks, columns and cards, and track progress and assign tasks in real time. It is suitable for individual and team project management and knowledge organization.
So:
Zotero is an open source literature management tool for collecting, organizing, and citing scholarly literature. It can save bibliographic information, PDF files and notes, and supports automatic citation and reference generation in various citation styles.
Mendeley:
Mendeley is another commonly used academic literature management tool, which can help researchers organize and manage literature libraries, and provides the function of citation and reference generation. It also supports literature search, annotation and collaboration features.
Dropbox Paper：
Dropbox Paper is a collaborative document tool that can create, edit and share documents, supporting real-time collaboration and annotation. It integrates with Dropbox cloud storage for easy synchronization and access across multiple devices.
Each of these tools has its own features and functions, and you can choose a suitable tool to manage documents and knowledge according to your needs and preferences.