Yes, but of course that's would be really slow. The best and fastest way to do so is to first know your targeted audience. Ones that is achieved, you can buy clicks from people through solo ads to build your email list. From there, ones you release a video , you update the people on your email list to watch the video. That way, you would have a lot of subscribers in no timeThe best way to make sure your subscribers on YouTube don't grow is to share your links with your friends and show them your talent. Even when you show your talent, people are attracted to you. And when we feed our talents to our friends, they are impressed and send our videos to their friends in a way that we can increase our subscriber