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