I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
mallows mellows malls maills mallees malleus mells meals mailless milos mulls molls mails mills mealless males mauls milles mullas mailes miauls mulleys mollies mullahs malaise mollahs mealies mels mils mols mools moles mules miles moils mewls molas molies muleys malice melees moolas milieus moolahs mooleys muhlies
allows hollows gallows fallows willows sallows tallows fellows bellows yellows mallows pillows mellows hallows wallows follows shallows billows lows slows halloes blows halloos phyllos hilloes flows villous belows fillos helloes alloys lowse hullos gallous niellos callose hellos lilos plows hulloes holloos hallos jellos villose hollos hilloas hillos halloas duellos holloas hulloas callous hulloos felloes glows bullous holloes cellos blowsy
mallow mall maill mallee mallei mellow small