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.
manilles manillas manilas manless maneless manuals menials hymnless moonless moneyless hymnals hymeneals
manilles canailles tenailles chenilles nellies nills vanillas quenelles manillas penniless seniles dunghills
manila manilla manille mainly manly meanly