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