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.