Generally speaking, at elite universities and colleges, US students already start out with low odds of acceptance. Being an international student makes those odds even tougher. That said, it’s not all doom and gloom on your list.
Amherst (ED) - Low reach/high match
Harvard - High reach
Williams - Reach
Columbia - Reach
Duke - Reach
Wesleyan - Low reach/high match
Emory - Low reach/high match
Skidmore - High match
Drexel - Match
You might consider adding a safety or a low match. For you, a safety/low match will be a less selective private school that offers exceptional financial aid to internationals or a less selective public school that offers strong aid to internationals. These may be hard to find but if you want to help ensure acceptance to a school in the US, it’s worth looking into.