Still remiss. Georgetown barely misses the Ivy-equivalent tier, so:
HYPSM:
HYPSM (Williams, Amherst, and Swarthmore). WAS LACs are the only schools close to HYPSM. 5 RUs and (maybe?) 3 LACs
(non-HYPSM) Ivy+Ivy-equivalent:
Other Ivies + Northwestern, Chicago, & CalTech, Duke, Cal, Pomona, Barnard, Wellesley, Haverford, Bowdoin, Wesleyan (and Rice & Georgetown). 12 RUs and 6 LACs
Near-Ivies:
JHU, Oberlin, Middlebury & UMich, Notre Dame, Tufts, Vassar and Reed (and UVa, CMU, and Bryn Mawr): 6 research universities and 5 LACs.