Nostra rhymes with:
astra, balestra, boonstra, bostra, costra, dextra, dykstra, extra, feenstra, hamstra, heemstra, heidstra, hiemstra, hoekstra, hofstra, hukstra, hydstra, kamstra, kustra, lastra, maestra, olestra, orchestra, rienstra, spoelstra, telstra, terpstra, tuinstra, veenstra, westra, xtra, zandstra, zylstra
Nostra sounds like:
nastier, nectar, negotiator, nester, nestor, neumeister, newscaster, nicastro, nichter, nicotera, nicotra, nighter, non-sequitor