I want to collaborate with one of the YouTube channel. How to find YouTube channel owner email? I want email id or phone number of that particular YouTube channel owner. Is finding out YouTube channel owner email id possible? If so how can I contact YouTube channel owner?

Mine is a clothing brand and I want to invest it and I want to make it a big digital marketing trend. So I want to use YouTube videos and the person and speak me has a very large popular YouTube channel.. so I want to collaborate with them.