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.
broach brach breach broche brooch brachia brioche brash birch barouche birrotch brashy breech boarish brush brushy bearish boorish
roach caroach broach march search preach caroche parch brioche orach broche torch huaracho grouch earache crouch brooch cratch huarache brach breach caroch preachy porch orache mariachi larch crotch currach birrotch ratch reach rotch arch carroch soroche troche
bro bra biro boar bora brae braw bray brio broo brow bura