ASMR is something a bit different now a days than what it is supposed to be lol. It could be sounds, noises, or anything to stimulate the senses. Just like how some people find mechanical keyboards statisfying, ASMR is basically just all sounds of various kinds to achieve that sort of satisfaction for each person which is known as the autonomous sensory meridian response . Everyones going to like something different so there is a lot of types. But then eventually, it just turned into people roleplaying in whispers into a microphone lol. That is still ASMR for some people, but its just a part of it. It's also something totally different for some people and that's another reason why it's watched too.