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.
laminate lament lambent lemonade limonite limned loment
bombinate geminate laminate nominate ruminate deaminate dominate manatee minute ammoniate emanate comminute umbonate