Merrill's rhymes with:
carol's, carols, erol's, errol's, imperils, karels, perils, april's, australs, balmorals, barrels, carol's, carols, carroll's, cathedrals, central's, chorals, corals, entrails, erol's, errol's, florals, gabrall's, garrels, garrols, harrell's, imperils, jarrells, karels, kestrels, laurel's, laurels, loral's, minstrels, morals, murals, neutrals, nitriles, nostrils, perils, petrels, plurals, quarrels, scoundrels, sorrell's, sorrells, sorrels, spirals, st_charles, surles, urals
Merrill's sounds like:
marlys, maryalice, memorialize, memorials, merlis, mineral's, mineralize, mineralogy, minerals, minerals', mireles, mirelez, monorails, morales, moralez, moralize, morals, morelock, morlock, murals