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.
birch brach birrotch breach breech broach broche brooch brioche brachia barouche brash brush brashy brushy bearish boarish boorish
birch carroch church torch diarchy porch parritch arch brach girsh caroch carritch rich currach curch larch lurch march merch orach parch perch search dreich torchy churchy