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.
quorums curiums corms gorms grumes crumbs kormas grumous corymbs grumose cormous crummies gouramis grams gouramies corymbous crams corymbose grooms gramas kermis karmas caroms crimes kermes grimes cremes creams carroms crambes grammas grammes kermess kirmess
forums quorums jorums rums curiums yttriums crumbs drums corms serums jorams norms grumes ferrums formes kormas brumes gorms bohriums forms larums forams ceriums bariums dorms aurums durums arums worms