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.
layman lawman laymen leman liman lamina lawmen laminae limn lemon limen lumen lomein
cayman bayman layman man bemean bowman many human lawman mawn moan liman laymen cowman baymen reman romano simian daman domain woman showman amain mean maun main hymn hymen bemoan foeman humane caiman mano mana leman mane immane remain roman seaman soman demean toman shaman yeoman
lam loam slam clammy flamy flambee flambe flam blame blam alamo loamy llama lama lamiae lamia lame lamby lambie lamb flambeau flame clam glam ulama