https://support.microsoft.com/en-gb/office/sharepoint-video-training-cb8ef501-84db-4427-ac77-ec2009fb8e23?wt.mc_id=otc_home
SharePoint video training - Microsoft Support
Learn common SharePoint Online tasks with these videos and tutorials, and get links to more training for SharePoint and Office 365.
sharepoint video trainingmicrosoftsupport