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.
fleams flams flames flambes fullams films filmis flambeaus flimsy flumes foliums phloems phellems vellums volumes
fleams gleams elms flambeaus flames lambs phellems halms elemis calamus claims clams blames gloams kalams malms oleums realms salamis xylems ulemas chalumeaus glams balms blams helms lamas alamos ylems loams llamas lams calms lames flams phloems fullams alms golems qualms milliemes palms salaams slams ulamas whelms chlamys
fleam flam flambe flambeau flambee flame flamy aflame