The following are the solutions for multisite hosting:
Cloud Platform multisite
Site Factory
Both the solutions provide a functional multisite experience. However,
Site Factory is recommended as the more robust multisite solution because of
the following features:
Automated orchestration that makes provisioning, deprovisioning, and
multisite management easy from the user interface, without the need for
developer intervention.
Strict governance that restricts updates, deployments, and access control to
a best-practices model.
Flexible management of your multisite, allowing you to respond to changes in
scale and complexity of all your sites.