Best practice to import file/folder structure into NextCloud

Dear Nextcloud!

We would like to use Nextcloud for managing our files and make them available to users any time anywhere and to collaborate. We already have a file/folder structure with a few hundred gigabyte of data. Is there a best practice to import this structure into Nextcloud, and make them available to users and set different permissions for different users? I found a possible solution to this scenario in the Nextcloud Server Administration Manual section 8.1.2. Creating persistent Shares.

Thank you in advance

Gregory Szabo