If you are making use of a dedicated Youtube channel to a certain niche / local business client, it is best that you make some certain optimizations instead of leaving it as default settings with no thumbnails or pictures.
You can start doing this by following the steps below:
Click on your profile icon and click on "My channel)
Go to "Channels" and click on "Customize Channel"
Click on "Add channel art"
Click on "Select a photo from your computer"
Note- make sure the photo is 2560 x 1440 pixels so that the banner will be displayed properly.
Click "done' after this process is completed
About -Channel Description
Click on "About" and fill the description for Channel Description ..a brief explanation of what the videos for the niche/business
EMAIL FOR BUSINESS ENQUIRIES
Key in the email address for the business contact