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.
quiets quietus quits quoits quids cuties quotes guides quotas cuddies cutties gaudies kits guts cuts qats gaieties keets quods gutsy gaits guids cutes cutis qadis quads gudes gouts qaids kites cuteys ketose cutesy goodies kiddies kiddoes kitties caddies catties cooties cutesie
quiets diets its gites aides eddies sets hoodies kitties jetes nides ties cutties bitts bits pities meats coitus vets sits fets zitis footies quoits knits caddies soddies metes heats jetties gets fiats goodies bawdies ladies boites gaudies netts moieties hides leets fatties putties kites adieus fetas gaits middies mitis bawties patties nits rets quietus teddies gits titties writes tatties toits tides deities waits neddies cetes whets wets whities widdies riots wites woodies chides chitties dawties shits yetis waddies baits dowdies sides howdies suits litas titis poets baddies booties roadies pieties dites keets toddies suets ditsy pets bides doits cuddies duits nudies readies cities daddies foetus jets doodies butties neats ides eats laddies bites mites biddies cooties kits tets reties wadies duties newts bets betas fetes beauties guides catties laities chits wheats raitas fuddies gaieties haets hotties boodies buddies meets muddies foodies bitsy bodies dies kiddies zetas feats lits suites beats metis getas etas aits beets todies shoddies noddies fits rowdies cuties quits cites hets jutties ditas mitts beedies tidies whits wits paddies nites dits giddies peats lets tits fetus pits pietas hits zits setts whites seats potties rites writs sites situs nets duets tutties pitas sheets cheats dauties rides deets didies sties ditties teats toadies weets wides yetts
quiet queued quid quit quite quoit equid equity squid