Yellen rhymes with:
belen, bellon, carnegie-mellon, chelan, delane, ehlen, ellan, ellen, excelan, felan, felon, flewellen, helen, hellen, integrelin, jelen, kellan, kellen, lewellen, maclellan, magellan, mcclellan, mcclellen, mckellan, mclellan, mellen, mellon, melon, nelon, pelon, phelan, sellen, sellon, snellen, thelen, wehlan, wellen, whelan
Yellen sounds like:
yalin, yelena, yellin, yellin', yilin, yulian