YouTube analytics has been updated, you’ll now be able to see other channels that your audience are watching.
To see this information just go to your YouTube Studio on desktop. Then in the analytics section you will see a new card called ‘other channels your audience watches’. This will show the channels your audience have been consistently watching over the last 28 days.
To best use this data you should track it in your own way. This way you can look back over a bigger amount of data to find patterns in behaviour. You could also use this information to plan collaborations with similar channels to help you both grow your audiences.