Featuring a video channel on homepage

oonagh_m  First of all Welcome to Microsoft Tech Community and Specifically to Sharepoint Spaces... here is the way we can promote our videos... first of all make sure you are using the modern experience of Sharepoint secondly I am not sure what video channel you are talking about if that is youtube, the best recommendation will be using the Microsoft Stream video channel where you could upload your own corporate content and then inside Sharepoint modern experience you got different web-part which one of them is Steams that you could use. if the Sharepoint site is even a Communication or Hub site.

I am sure you would know the difference between the different Sharepoint sites which are Teams site, Communication site, or Hub site.

Lastly, if you are not well with designing ideas here is the perfect collection of predesigns from Microsoft look book could give you stunning design and look that you could use.... https://lookbook.microsoft.com/#templates

Please share your experience oonagh_m once again welcome to MTC!