How best to manage regional access or permissions?

I am not sure how to set this up in Contentful. I have a global website with editors in many countries. I would prefer the can edit / create content targeted for their region only. I am currently exploring using the community trial, I see mention about tags, but I am not sure how exactly I would achieve this.

I do not mind if they can view existing content in other regions. I have seen other systems have concepts of “collections” that content can be created in to help manage this. Any tips would be helpful!