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.
sane sawney sene sine syne sawn sone sain seine sinew sauna scene sinewy sun syn son sin sen cine sown sign snaw soon snow sunn zany sinh sewn zine seen zone hyson scena scion senna snowy sonny sunna sunny zonae
ane bane fane vane jane cane gane kane lane liane mane pane sane wane ne an