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.
sand saned sandy sained sned send saunaed scend sonde snood santo snide synod sound saint sanity sinned sundae sunned seined sundew signed sent snit snot scent sente senti snoot snout suint zoned
and band viand hand land rand sand wand