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.
slims slimes slimsy slams slums salmis solums salaams salamis celoms xylems
glims kelims kilims slims slimes delimes calms slimsy salmis vellums climes millimes blams helms climbs glams filmis alums solums shaloms whelms alms balms palms elms almes alliums haulms glums halmas kalams phellems almas limas realms halms clams golems fullams xylems qualms culms heliums holms foliums limbs limes films lums ylems limos lams chillums slums dolmas galliums gloms glimes kaliums flimsy flams coeloms malms palliums plums celoms slams claims sholoms
slim slime slimy salmi slam slum slummy