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.
caids cads qaids cadis cades coatis caddis caddies gads catties cats cuds kids cods kadis gaits codes quads coeds goads cates gauds codas coats guids quids cutis gadis qadis cottas guides kiddos gaddis coitus cuties codeias kiddies cooties cuddies caddice caducei coatees kiddoes gaudies cutties gaieties cots cuts gats gods kats kits qats
aids maids caids qaids raids saids ads ids fades kadis guids vids padis cadis sadis adds mads gids daisy bides cades roads beads satis gadis bidis lids jades readds loids naiads coatis pads dads yauds shads chides woads whids wads wades tides tads didos dadas bawds gads sides kneads fads rides qadis hades bids lades lidos quids guides baits ados nides nidus heads rids naiades bauds reads aides kids lads nadas leads fados loads bads hides aits mauds goads midis geoids eidos quads dais sayyids fids gaits cads meads voids lauds rads mids sades fidos gauds zooids ides dados deads duads teiids toads wadis waits wides chads shades hyoids yids
caid cad caddie caddy cade cadi qaid scad