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.
calms calamus clams culms claims climbs qualms climes clumsy kalams cleomes kalmias coeloms kaliums coulombs kalimbas galliums coelomes glams glims gloms glums gleams glimes gloams glomus glooms glumes golems kelims kilims
alms calms qualms realms malms balms palms halms gloams haulms celoms phellems halmas kelims almas glums golems holms claims blams blames calamus fleams flames filmis lums kilims almes culms fullams kalams glams gleams films shaloms clams slams alamos loams glims helms xylems vellums coeloms plums ylems flams elms lamas salamis slums ulamas chillums lambs lames lams llamas gloms salaams salmis slims solums dolmas whelms chlamys alums sholoms
calm calami clam clammy climb clime clomb culm kalmia