You have a project, and you have collaborators, now you need a space to call your own. First, think about what sorts of tools your team will need - will you manage meetings and deadlines in Outlook, or would a Confluence calendar be helpful? Where should documents be posted - OneDrive (for collaborative editing) or Confluence (for shared viewing)?
It may be helpful to make a short list of what your team needs, then figure out what tools/platforms will work best to meet those needs.
Under the Spaces drop down (near the Smithsonian logo at the top of the page) choose Create space
There are several space "blueprints" to choose from. Each comes pre-populated with certain page templates and navigation elements.
Give your space a short, distinctive, and descriptive name (not like the example below.)
If you want, you can "hide" your space either temporarily or permanently by checking the box next to Visible only to me
see Getting started