1- buy real members with force add subscribers
this solution is lower price for advertising on telegram and get real members, but this way have some problem, when you add members on your channel or group with force add method , members don’t know why add on your channel and when they are see your channel or group and didn’t like your channel , they can leave from it.
usually this way have high drop rate ( near 60% )
for decrease drop rate we add members on your channel in mute mode, means when u send a post on your channel members didn’t see alert of your channel.