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.
grumose grumous grumes grams gorms corymbose cramoisie gramas crumbs grimes grooms crambos grimace quorums curiums grammes cormous grammas gouramis cramoisy gremmies cramboes kermesse crummies corms gouramies crams kormas kermis caroms creams crimes cremes kermes karmas carroms corymbs crambes kermess kirmess
grumose ramose rimose biramose brumous corymbose grumous rearmouse reremouse dormouse shrewmouse