Using the Advanced admin training on LinkedIn Learning option, you can access advanced courses for Office 365 administrators and IT pros:

• Microsoft Cloud: Explore Cloud Services: https://support.office.com/en-us/article/Start-training-02ef429a-002e-4990-a152-8a1596ff925d

• Office 365: Deployment: https://support.office.com/en-us/article/Start-training-1b6d678b-dccc-47e5-9f05-c1e031ba1d29
• Office 365: Administration: https://support.office.com/en-us/article/Start-training-81d31f7b-2ada-4ecb-83d6-20972025be94
• Office 365: Manage Identities Using Azure AD Connect: https://support.office.com/en-us/article/Start-training-90991a1d-c0ab-479a-b413-35c9706f6fed
• Microsoft Cloud Services: Administer Office 365 and Intune: https://support.office.com/en-us/article/Start-training-c1224e20-3d49-4f40-99ee-fd0991880376
• Office 365: Troubleshoot Availability and Usage: https://support.office.com/en-us/article/Start-training-a72bae2d-6779-49fd-865f-9932293d2912
• Office 365 for Administrators: Supporting Users: https://support.office.com/en-us/article/Start-training-6373a517-d015-46d6-9713-0d5b18364965

These are just some of the options-there are many more!