Montana's rhymes with:
americana's, americanas, anna's, annas, arianna's, athanas, avana's, bananas, banas, bandanas, briana's, brianna's, cabanas, canas, diana's, ganas, ghana's, hanas, hanna's, hannahs, havana's, humana's, indiana's, janas, llanas, louisiana's, o'canas, ocanas, oksana's, panas, planas, savannas, susquehanna's, tropicana's
Montana's sounds like:
maddening, madding, madness, madonna's, maidens, maintaining, maintains, maintenance, mandamus, mandating, manhattan's, matinees, mating, matting, meat-eating, medianews, mediating, meditating, meditations, mediums, mednick, meeting, meeting's, meetings, mending, mendonca, mendonsa, mentink, mentioning, mentions, methanex, mindedness, minding, minnetonka, minting, mitnick, mittens, modems, monadnock, monatomic, monotonous, montanans, montanez, motioning, motions, motown's, mountain's, mountainous, mountains, mounting, mouthing, muddying, munitions, mutating, mutations, muting, mutinies, mutinous