lets you make multiple channels easily. You can make another channel by logging into your existing one first.
How to create multiple channels • Lickd
How Do Channel Memberships Work?
How to Find Your Channel's URLs: Mobile and Desktop
How to Get 1,000 Subscribers on (Fast and Free)
Can You Buy A Channel?
Why Understanding Channel Types Makes Using Slack More Awesome
Omnichannel customer service vs Multi-channel support
How Integrated and Multichannel Marketing Fit Together – GlobalSpec Marketing Resources
What is Multi-Channel Marketing – and How Can You Do it? - WebFX