Rankings rhymes with:
banking's, banking's, banking's, bookings, brookings, carjackings, dockings, hijackings, makings, markings, pickings, smoking's, stockings, takings, talking's, undertakings, viking's, vikings, workings
Rankings sounds like:
ranching, ranging, rangoon's, ranking, rankins, ransacking, ransom's, ransoms, rearranging, reinking, remaking, reminiscence, reminiscences, reminiscing, remissions, renaissance, renaissance's, reneging, renouncing, rensing, ringing, ringneck, rinsing, romancing, rummaging