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.
flames flambes flams fleams flumes flambeaus fullams films filmis flimsy foliums volumes phyllomes phloems vellums phellems
lames flames blames salaams slams palms realms qualms milliemes glimes glumes limeys illumes glams alamos ulamas climes clams flambes calms lambs lamas volumes lams fullams limes fleams delimes blumes llamas almehs balms flumes loams blams phyllomes coelomes cleomes claims calamus halms flams alms almes gleams gloams kalams malms millimes plumes relumes salamis slimes telomes chlamys
flam flambe flambeau flambee flame flamy film filmi filmy fleam flume aflame