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.
fetes fets fates feats feeds fetas fetus fouettes vetoes fyttes foetus fatties fats vets fits footies feds ghettoes fatso fiats feuds foots fades feods votes footsy foodies fuddies ghettos fatuous vitesse fads fids fuds futz vats ghettoize
fetes cetes jetes metes footies cutties kitties cuteys meats cites hates lutes votes nets patties butties beets pietas feeds quiets poets vetoes quotes jetties deeds butes shotes routes suedes pities fyttes battues etas booties beauties aedes tutees lets weets dites rotes puttees notes coatees pedes mutes whites mateys fatties yetis chutes whities sates moieties hotties cedes rates deities utes sets newts lattes neats mottes metis stews dauties dotes titties wheats rets tatties cheats meets jutties gets boites gates seats catties suites setts dees betas fetus bates cooties zetas bawties keets reeds teds bites duties duets cutes meeds fates netts lottes pates feats fouettes pets vets nites redes buttes weeds diets goatees buteos toes cuties bootees tews sheets cutesy sties ates heats kites ties wytes gaieties mattes cates cotes tees bets totes fetas gites dawties jets jutes settees hets heeds whets putties nates teas haets foetus needs pieties sautes mites suets ghettoes fets wites laities mottoes bytes suttees getas quietus eats teats beats writes tates shutes seeds chitties whiteys cities kytes rottes peats reties deets tutties mates rites motes potties poetess leets sites dates ditties tets wets yetts
fete fet fate feat feed feet feta feued