Oswalt rhymes with:
daywalt, fornwalt, gotwalt, greenwalt, starwalt, steigerwalt, stierwalt, zumwalt, anhalt, aronhalt, awalt, daywalt, dewalt, difficult, ewalt, fornwalt, gotwalt, greenwalt, outcalt, starwalt, stechschulte, steigerwalt, stierwalt, stirewalt, tumult, tybalt, zumwalt
Oswalt sounds like:
occult, ocelot, ogled, oscillate, oscillated, osswald, oswald