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.
birrotch birch broach broche brooch brioche barouche brach breach breech brachia brash brush brashy brushy
birrotch crotch rotch soroche grutch crutch broche cratch carroch carritch caroche caroch brooch caroach rotche roach retch crouch ratch grouch broach parritch wretch troche
biro birr barrow borrow burro burrow bro brr