What type of volunteering do Ivy League colleges prefer?

No matter where I volunteer, I will be passionate about it. My worries are that the hospital is too generic, as it seems like everybody volunteers at a hospital and it won’t stand out. Also, Habitat for Humanity does not seem like it will have much of an opportunity for advancement for regular, continuous volunteers, and it does not seem like something that would impress college admissions officers. I understand that you all are saying that I should not volunteer based off of what I think is impressive, but as an international student, mu chances of acceptance to an Ivy League is the literal equivalent of zero.