Step1: Select + Create site on the SharePoint start page.
Step2: In the wizard:
Step3: Select whether you’d like to create a Team site or a Communication site.
Step4: Enter the name (and a description, if you want) for the site.
Step5: You can select Edit Image of the pencil icon for editing a flow. and then edit the group email address or site address, if you want.
Step6 Choose a sensitivity level for your site information.
Step7: Select whether the group will be public or private.
Step8: Select a default language for your site and then click Next.
Step9: In the next pane, enter the owners and members.
Step10: Select Finish.