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.
scanned scandia skinned scant sickened squinnied sequinned second secund secant scanty secondi secondo siganid skeined seconde sequined cygnet signet
scanned canned squinnied skinned sequinned regained reconned recaned kenned acned gunned gannet gained conned canoed caned chicaned