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.
alums alms alliums almas almes alamos almahs almehs almuce
lums solums chillums plums slums vellums alums glums holms almas flams phellems kalams calms fullams malms kelims whelms xylems lams plumes lumas palms foliums loumas balms flumes alliums culms glams gloms realms celoms oleums glims shaloms qualms dolmas palliums halmas glumes ylems plumbs kilims clams haulms blumes volumes helms halms kaliums blams coeloms slams almes illumes films alms filmis elms golems clumsy relumes salmis slims heliums galliums sholoms
alum alamo alma almah alme almeh