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.
prims primus primos primas primes primsie proms prams perms promos proems praams premise paramos primacy premiss premies promise permease preemies promisee hyperemias
rims trims brims prims proms kormas terms derms ceriums surimis arums larums warms barms dorms berms bohriums fermis bariums firms formes forums charms roms jorams ihrams crimes bermes gorms grimes kermes dermas caroms norms prams primes harms aurums drums corms perms rams yttriums forams ferrums arms vermes primos harems germs carroms jorums herms crams curiums rimes rums berimes forms drams dermis vermis primus zirams serums rearms primas rems dirams quorums worms kermis karmas grams durums trams marrams farms chirms
prim prima prime primi primo perm pram premie prom promo