Tableau rhymes with:
tableaux, tableaux, bleau, blow, blowe, tableaux, aglo, aglow, belleau, below, bleau, blow, blowe, boileau, cloe, clow, enloe, enlow, enslow, flo, floe, flow, flowe, furlaud, glo, gloe, glow, groleau, guillot, hello, inlow, ledlow, leleux, lo, loe, loh, low, lowe, mealo, rouleau, sloe, slow, soileau, tableaux, valleau, veilleux
Tableau sounds like:
table, tadpole, tafel, taffel, tafolla, tapley, tavel, teeple, teply, teufel, theophila, tidball, tipple, tivoli, topel, topol, topple, tubal, tubule, tupelo, tuvalu, typeable