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.
kytes kites kitties kits kats kotos katas keets cutes cotes cates gates cutesy kotows quotes cuteys ketose cuties cutties kowtows keddahs coatees catties kiddies goatees cooties kiddoes gateaus cutesie gaieties cats cots cuts gats guts kids qats
wytes bytes kytes hates lottes battues putties vetoes catties motes mates jutties bootees cooties bawties bites mattes chitties tatties gites totes dauties mottoes ditties sautes mites sties rotes fatties cetes pities cutes shotes whities tutties tets duties deities suttees sites cities routes reties potties patties nates footies laities bates notes jetties boites booties teas cuteys cutties gates kites fyttes buteos whites tews votes quotes metes buttes mottes mutes jutes coatees jetes cotes ates lutes fouettes hotties rates rottes beauties ties pieties nites kitties cates fates mateys butes rites ghettoes butties fetes moieties toes lattes cites poetess gaieties cutesy puttees pates stews goatees dates tees dites dawties cuties dotes tates settees teds titties suites tutees utes writes whiteys wites sates chutes shutes