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.
cutely cuttle cuddly cuittle quietly cattily goutily coitally caudally kittel catalo cuddle caudal caudle coital guttle cattle cadelle cattail cattalo gaudily caudillo coattail
lately cutely whitely mutely tel wetly nattily tela hotly goutily quietly teal luteal hotel kittel meetly motley delly tattily betel telly nuttily outtell pettily rattly retell ruttily steal steely stele dottily widely chattel fitly meatily teel featly fattily tele boatel botel motel haughtily delay fatly mutuel tael knottily neatly tell outlay cattily patly ratel redly rudely sootily steel stela dottel doughtily tautly nudely nettly wittily chattily
cute cutey cut cate cote coteau couteau cued cutie cutty acute scut scuta scute