As a rule of thumb, any school that is ranked in the “national university” category by USNews, but which plays sports at the NCAA Division III level (instead of Division I). Going thru the USNews Top 50, for example, this would include:
Chicago, MIT, JHU, Caltech, WUSTL, Emory, Carnegie Mellon, Tufts, Rochester, Brandeis, NYU, Case Western, RPI
*these schools are mostly DIII, but do play one “signature sport” at the DI level (lacrosse at JHU, hockey at RPI)