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.
lanced lancet lensed leanest linseed lionised lionized liniest luniest lanosity looniest
bounced lanced fenced zinced synced nuanced minced chanced danced ponced pounced jounced jaunced winced oncet lensed fancied rancid censed mensed concede sensed menaced rinsed tensed lancet
lance leans plans glans clans lanes lanose launce lawns leanness lanais lianes lianas llanos loans alans elans flanes flans glance planes ulans