I am creating some training materials for Power Users and found these links that may help for who are SharePoint Online Administrator. I try to keep the links are up-to-date but please let me know if there is any broken links

You want to create and use taxonomies to classify and organize information on sites.

You can use the Term Store Management Tool to create, import, and manage hierarchical collections of centrally managed terms (called term sets).

You need to automatically route content to specified locations based on records management or document management criteria.

You need to configure Search for your SharePoint Online environment.

You want to provide users with the ability to find and install internally-developed business apps or third-part apps to customize and extend sites.

You want to create an eDiscovery Center for managing content that may be part of eDiscovery requests in investigations, audits, or legal cases.

An eDiscovery Center is a site collection and must be created in the SharePoint admin center. The eDiscovery Center template is located on the Enterprise tab of the new site collection dialog box. Each new case becomes a site in the eDiscovery Center site collection.