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.
mulleys muleys mulls mules mullas milles mallees mullahs muhlies malleus mollies mooleys mills malls miles mells mailless mauls molls moles males mealless melees maills molies miauls mailes mealies mellows mollahs mallows mels mils mols milos mails mools meals mewls moils molas malice moolas malaise milieus moolahs
alleys mulleys pulleys valleys volleys gulleys galleys leys fellies alloys hollies muleys goalless cullays foleys callees hulloes ballies gullies rilles halloes mallees boulles mealless bellies sallies soulless sailless blueys dillies challies willies wellies tulles toolless tellies tailless doyleys sullies dallies kellies helloes jellies gallies nellies folles mollies billies fillies lollies coalless baileys allees mailless selles rouilles milles soilless sillies filles pollees keelless hilloes belles bullies gleys fleys ghillies cullies gillies follies collies malleus allies dellies rallies felloes mooleys heelless holloes failles jollies allays killies dalles dollies tailles tallies tellys tuilles wallies wheelless woollies chillies les
mulley mule mull mallee mallei mille muley mulla mullah