Some people still prefer a physical daily planner in paper format. But if you prefer digital tools, Google Keep is a great option. Its easy to use and integrates well with other Google software.
I've tried a number of task-organizing and planning apps but none like Notion. Notion helps individuals like me who struggle to stay organized and productive.
Digital diaries and apps are convenient but ... monthly or quarterly planner? In general, daily planners that have a page for each day are best suited for those of us with lots of daily tasks.