As one approach toward creating a broader list, consider taking a close look at the 15 colleges that CC considers to be its peers:
Bates College
Bowdoin College
Carleton College
Colby College
Colgate University
College of the Holy Cross
Davidson College
Hamilton College
Kenyon College
Lafayette College
Macalester College
Middlebury College
Pitzer College
Wesleyan University
Whitman College
https://www.coloradocollege.edu/offices/ipe/peer-institutions.html