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.
flams flames fleams flambes fullams films filmis flimsy flumes flambeaus foliums phloems vellums volumes phellems phyllomes
lams slams glams kalams blams clams flams fullams elms halms kilims filmis halmas blames calms gloms kelims gleams alms malms palms plums gloams glums glims alums golems fleams qualms flames realms lums culms celoms shaloms alamos salamis calamus loams lambs coeloms xylems salmis almas helms claims balms almes films salaams slums ulamas chillums llamas haulms phellems lamas holms lames ylems slims solums dolmas whelms chlamys vellums sholoms
flam flambe flambeau flambee flame flamy film filmi filmy fleam flume aflame