Microsoft recently began the rollout of modern Communication Sites in Office 365. This new template is now available in 100 percent of First Release tenants. If you are not in a First Release tenant, you can try out the new experience if your account is set to be a First Release user in your tenant. (Once your settings are updated, you may have to wait few hours for the new site creation experience to appear.)
Once you have Communication Sites enabled, you will now see a new option when you create a site from SharePoint home asking you to choose the type of site you want to create.