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.
climes glimes claims climbs cleomes culms glims clams calms coelomes glumes kilims clumsy kelims calamus coeloms gliomas kaliums coulombs galliums kalimbas glams gloms glums gleams gloams glomus glooms golems kalams qualms kalmias
limes climes delimes millimes slimes glimes limbs climbs claims phyllomes heliums limas glumes flumes relumes coelomes alliums milliemes kelims kilims slims almes limos illumes blames flimsy galliums palliums glims cleomes almehs kaliums plumes lambies volumes limeys flames flambes films blumes foliums lames slimsy telomes
climb clime calm claim clam clammy clomb culm glim glime