Using Carnegie Classification search, these universities are medium size or smaller, Research-very high or Research-high, and primarily residential:
Brandeis, Brown, Cal Tech, Case Western, Catholic, Clark, Clarkson, William & Mary, Dartmouth, Duquesne, Howard, Lehigh, Missouri S&T, Princeton, Rensselaer, Rice, Stevens, Tufts, Dayton, Rochester, Yeshiva, and Wake Forest