Think of YouTube channels like television channels.
If you find videos on YouTube that you like to watch that are part of the channel, you can subscribe to that channel quite easily. When you subscribe, you’ll get updates when that person puts a new video on their channel. If you find YouTube or the Internet for that matter overwhelming, search for things that you like. For example, if you like to cook, look for cooking videos.
If you think it exists, it is probably on YouTube.