Anybody use Slack without a company workspace?

[zxcvbob]

Title pretty much says it all.  We use Slack at work for instant messaging.  I like the platform.  I'm transitioning to retirement this week, and they revoke all my accesses and email account in a couple of days.  (at least they are supposed to)  I'm wondering if there are public Slack communities that do not require a company email address.

(now heading off to research the question I just asked. I have a bad habit of doing that)

[zxcvbob]

Nevermind.   I signed-out with my company email and signed in with my own to look around, and there's nothing to see.  (I thought there would at least be a list of public-access workspaces)  I could create a workspace and invite people to it, but who in their right might would join that?  (rhetorical)