For campus atmospheres that align especially well for students interested in performing arts, look into Connecticut College, Barnard, Sarah Lawrence, Vassar, Bard, Skidmore, Kenyon, Oberlin. You can trim by selectivity and other attributes as appropriate.
For colleges that offer the type of writing emphasis you described, consider choices from this group: https://www.usnews.com/best-colleges/rankings/writing-programs.