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.
killdees kilties quillets colludes collides kilts clades gledes glades gleeds guilds gleets glides callets gallets keloids cullets collets gullets collates galletas galettes gallates colloids quaaludes clads golds kelts clods gleds glads colds caulds cleats clouds culets glutes guilts quilts
killdees blades oeillades quaaludes glides gleeds collides glades lodes illudes ludes alludes baldies ballades deludes slides tildes roulades lades boletes halides mildews leets gleets gledes clades colludes phyllodes fleets bleeds eludes elides bolides deletes sleets dildoes oldies childes
killdee killed skilled skillet