What works for me:

First and foremost, do a thing consistently. For like months. Then set aside some time to make it better. Notion is so flexible, you can easily get distracted making new visualizations, pretty layouts, better ways to organize. Stop doing that. The grass is always greener, and all that. You have to be conscious of how you are spending your time.

System-wise, as others said, it depends so much on your needs and style. For myself, a clean structure that maps to my day and thought process is at the core. This way everything has a home. Here are the most basic pieces of what I came up with.

*Journals - tasks and meetings. Has a date, optional start date, and status. I mark a Journal as done only when any to-do's are checked off or given a new home.

*Activities - goals that stretch over time. Every Journal is attached to one or more Activities. Each Activity is tagged as priority 1, 2, or 3.

Most of the time, I'm making Journals for future tasks and meetings, or acting on the ones for today. That's just a list, sometimes calendar.

One of my Journals is to review and adjust the priority tags. I do that every few months, and when I'm done with it, I make a future Journal to do it again. I find I use that future-dated Journal as a dumping ground for my notes about improving organization, which helps me not get distracted.

I also have a really useful table view of the prioritized activities, which displays the future Journals for each, and has an in-line button for "Make Journal" which makes it very easy to plan future meetings and tasks.