Sumatra rhymes with:
malhotra, nicotra, sinatra, altra, artra, astra, atra, balestra, batra, boonstra, bostra, bumiputra, chitra, cleopatra, cometra, contra, costra, dextra, dutra, dykstra, electra, elektra, extra, feenstra, hamstra, heemstra, heidstra, hiemstra, hoekstra, hofstra, hukstra, hydstra, intra, kamstra, kontra, kooistra, kustra, lastra, licitra, maestra, maitre, malhotra, mantra, matra, metra, mitra, nicotra, nostra, notre, olestra, orchestra, petra, poitra, rienstra, sartre, sentra, sinatra, spectra, spoelstra, tatra, telettra, telstra, terpstra, tetra, tuinstra, ultra, veenstra, westra, xtra, zandstra, zylstra
Sumatra sounds like:
samatar, sander, sandor, sandra, sandro, sanitary, santer, santeria, santerre, santor, santora, santore, santoro, santry, saundra, saunter, schexnayder, schexnider, schmader, schmetterer, schmieder, schmitter, schneider, schneiter, schnider, schnieder, schnyder, sciandra, secondary, semidry, senator, senatore, sender, sendero, senter, sentra, sentry, shintaro, signatory, signature, sinatra, skenandore, skender, smather, smatter, smither, smoother, smother, snader, sneider, snider, snyder, sondra, sounder, squander, summiteer, summitry, sumter, sundar, sunder, sundry, sunter, suntory, swander, symmetry, synder