Astra rhymes with:
lastra, balestra, boonstra, bostra, costra, dextra, dykstra, extra, feenstra, hamstra, heemstra, heidstra, hiemstra, hoekstra, hofstra, hukstra, hydstra, kamstra, kustra, lastra, maestra, nostra, olestra, orchestra, rienstra, spoelstra, telstra, terpstra, tuinstra, veenstra, westra, xtra, zandstra, zylstra
Astra sounds like:
accusatory, aciduria, actor, actuary, actuator, acustar, agitator, akhtar, ashtray, astaire, aster, astor, astore, astoria, astray, astro, auchter, auster, austere, austria, austro, aztar