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.
germy germ
germy herma wormy dreamy derma serum rearm perm grimy gremmy creamy germ herm rimy fermi berme berm barmy army derm dormy term chromy