Top SharePoint permission management practices

Microsoft has released numerous admin capabilities to both modernize your intranet, manage change, and keep it dynamic. The SharePoint admin center offers the flexibility and control you need to manage everything your intelligent intranet requires. SharePoint admins create and manage sites, establish or adjust the primary intranet entry point, optimize for spanning geographies – location and languages, and more. https://techcommunity.microsoft.com/t5/microsoft-sharepoint-blog/agile-it-management

An overview of different types of security groups in SharePoint and Office 365 | SharePoint Maven

SharePoint User & Group Permissions

M365 groups vs Teams vs SharePoint: Key differences