Here's what rhymes with swoll.
ol ole whole role soul coal goal hole pole roll sole bowl fol mole poll stole toll knoll shoal dole foal bole boll thole vole kohl tole dolour skoal parole scroll stroll droll vacuole troll prole enroll systole casserole extol cajole petiole unroll oriole maypole extoll rissole patrol glycerol bedroll condole innersole control camisole cubbyhole beanpole quadrupole arteriole buttonhole pigeonhole profiterole decontrol