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.
caiman cayman camion cowman cumin gamin common cowmen cummin gamine gammon kimono combine commune kamaaina
liman caiman man cowman many mana romano reman limn moan mean main maun mane vimen mano seaman soman daimon damiana domain woman showman mawn bayman bemean bowman daman demean simian daimen human bemoan saimin roman foeman shaman toman remain limen leman layman lawman cayman humane amain immane yeoman
cam cambia came cameo cammie camo akimbo scam