And here I am, sitting during my 1.5 hour commute, thinking about how I should buy some more work-appropriate casual clothes because no one else wears suits at

And here I am, sitting during my 1.5 hour commute, thinking about how I should buy some more work-appropriate casual clothes because no one else wears suits at this site, and what free or inexpensive software we could use to make a project team collaborate more effectively... What other "enterprise ready" solutions are there for this purpose? My other options based on the team's familiarity with them are are O365 (SharePoint/Outlook/Teams + MS Project), ServiceNow (I guess?), or HP PPM. I'd rather use something hosted because getting internal infrastructure is hard.