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.
claims clams climbs climes calamus glams glims culms calms glimes clumsy kilims gloams kelims gleams kalams kaliums coeloms cleomes coelomes coulombs galliums kalimbas glums gloms glomus glooms glumes golems qualms gliomas kalmias
claims lambs limbs limes limas glams gloams glimes kaliums clams climes calms malms heliums kilims palliums fullams realms flams salamis flimsy slimes lames slimsy lams ulamas films lamas llamas halms alliums alamos alms galliums glims gleams kalams limos climbs calamus qualms kelims loams millimes foliums palms flames salaams fleams slams blames slims balms delimes blams chlamys
claim calami clam clammy climb clime