I just answered in your other thread, but look at U Rochester and CWRU as similar to Washu but less selective. You can design your own major to approximate PNP at many schools.
Also worth looking at but still pretty selective are Wake Forest, Emory.
More: SMU, Brandeis, Tulane, William and Mary, Fordham.
Many of the schools in post #3 are not similar to washu, at all.