Hi Wcash, seems like a pretty cool project.  It doesn't look like a slack group has been created yet, so I made one.

Join the Waves Cash Slack channel!
https://join.slack.com/t/wavescash/shared_invite/enQtMjQ2MTA5MjgxOTQxLTM4YThlOWJhNmU5ZjNkOTQ3YTBlNzFjNTVkMWZjOTdkMDM2M2M3NzBmZTdjZGYwNDI5ZDhiMjBjZDE3OWVhNmU

If you're still looking for a promoter, send me a PM.  (I specialize in media content creation and marketing)