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.
samiel sawmill smell smile sambal simile smelly smiley small seemly symbol
samiel mil mel gamely kummel mile mill remail pummel pommel camel namely milo homily mail meal moil simile smile tamely umbel gimel beamily mell pomelo sawmill smell family gamily mewl email roomily pummelo timely doomily pumelo comely lamely camail gemmily homely hammily foamily chummily
samba sambo same seam seamy semi zamia