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