Add two new managed paths in SharePoint Online (projects & groups)
Currently the two managed paths (/sites and /teams) are fairly limited and I suggest that you add two more managed paths.
Having these two additional managed paths would allow for more flexibility and a much better information architecture in SharePoint Online
Ideally, this would be much better: https://sharepoint.uservoice.com/forums/329214-sites-and-collaboration/suggestions/16726579-allow-creation-of-managed-path
Drew Lanclos commented
These two managed paths are exactly what I want to see as well. Especially /projects. /teams is good, but I'm really surprised they didn't add /projects and /departments or /groups. Makes my plan to migrate to SPO much more difficult.
Please add /archive also - good when we can move stuff around in the tenant and make the url visualise that might have archived it (visitor only rights)