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.
caroch caroche carroch caroach crotch crouch curch carritch grouch cratch crutch creche currach grouchy crash crush creesh garish grutch currish kerchoo
caroch carroch broche brooch frosh caroach caroche crouch currach broach march orach perch search diarchy torchy church larch brach brioche curch birch arch rotch roach rich crotch birrotch grouch lurch merch parch porch soroche torch troche churchy
car care carr carry crow karoo acari scar scare scarey scarry scary