mocha will just never be as good at asmr as the best girls. it takes some intelligence and a certain bit of artistry, not to mention natural talent for acting.
and i think you are greatly underestimating how much work it takes to make a good video. sure, the physical process of filming and editing the video can probably be measured in hours and that won't amount to much, but writing scripts has to take a while.
that's why aftny and maimy are the best. the videos make sense, they are acted well, they sound great and both of them have girl next door looks. so that's S tier. someone like puffins is A tier, because while she lacks in certain departments, she's hot as fuck.
i kinda like Baby Bella, she has potential, but she's furrier than an ewok and (sadly) i'm really not into that.