I found an excellent way how to do this, but I would really prefer to do it with Obsidian. There is no plugin for Obsidian that will offer real-time collaboration.
Spike email has a great way to share a dedicated space ( notes ) for collaboration.
It came to me as an idea that instead of messing up the entire message channel in Discord, we could keep the trash to the minimum with dedicated spaces like that one in Notes for Spike.
There is also a whiteboard from Microsoft, but it requires an account to log in, and we were hoping to avoid any unnecessary steps.
Another candidate is quite obviously a Google Drive, but again an individual would need to log into an account.
So, seeking an appropriate whiteboard app is on the list.
👁️🗨️