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.
proem prom promo premie perm pram preemie prim praam prima prime primi primo hyperemia paramo
proem rem rom neuroma roam ream harem carrom creme cream barroom prom dayroom tearoom chrome chromy room aroma bireme groom from varoom vroom hareem bream carom promo broom dream brome chroma bromo chromo showroom
pro pree ropery popery pyre puree pure prow proa prey prao pare pore pereia perea pere pareu pareo pyro roper spree