- To do lists (prev. Org mode, OmniFocus, Things, many others)
- Bookmark lists (prev. raindrop.io, Pinboard, others)
- Kanban boards (prev. GitLab, Trello, others)
- Wikis (prev. MediaWiki, Confluence, TiddlyWiki, etc.)
- General notes (prev. my own tool, OneNote, Evernote, Simplenote, many others)
- Photos (I share using Notion and use Google Photos)
- Files (I share using Notion, but still use many services for this, including S3, Dropbox, GDrive, ...)