Bro, I do not know how much this is still relevant for you, but are you sure that you are worth increasing the demand for your content in this way? My friend from fanexplosion.de told me that if it's wrong to get subscribers, even if they are alive, then on the contrary you will make your account worse. It would be easier to say what you need if you told us more about what you are going to do. If you create some content and want to promote it by buying subscribers, then this is not the best option, it is better to buy very few subscribers and continue to work on the quality of content. If you make good content, then people seeing it in the feed will distribute themselves.