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.
guids guides quids gauds gudes kids gaudies cuds guts gads gods caids kudos qaids gaits gutsy gouts quods goads cutis kudus quits quads goods gadis gowds kiddos quoits gaddis cuties quiets goddess gateaus quietus cuddies cutties kiddies goodies kiddoes gaieties cads cods cuts gats kits
guids quids ids leuds gudes hides bids didos bides quits quads sides aids kids guides eidos gids bidis kudus bauds suits saids etuis dudes yauds chides ludes whids tides naiads duits lids rids raids mids mauds suds nidus judos ouds lauds gauds cuds lidos loids muds midis duads rides quods wides rudds leudes sudsy sudds geoids cutis puds sayyids caids maids voids teiids nudes fidos fids fuds vids ides feuds nides aides hyoids kudos qaids tuis buds judas zooids duds udos yids
guid guide gaud gaudy gude quid