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.
callet collet gallet cullet called galleta culet cleat culled gullet coaled galled galloot cullied gallate collude galette quillet galliot calotte collied collate galeate gallied collide clot cult colt clade gault clout cauld cloot clued gleet coled culti goaled gaoled cowled clotty gleety galoot gulled killed colead coiled galiot cooled colloid culotte gullied killdee quailed quality quelled quilled galatea quaalude
billet mullet pallet gullet ballet callet sallet quillet gallet willet cullet bullet wallet collet rillet millet pellet fillet pullet mallet let lulled fleet balled fuelled piolet gelled relet bolled muleta galleta hilled filled milled belled mulled gleet cleat called violet walled knolled leet dialled shilled shallot challot woolled willed celled palet tolled tilled dulled dolled felled boleti owlet ballot malled vialled culet reallot bluet valet galled killed bulled rolled polled culled melled nilled hallot gulled quilled bolete quelled nulled allot gilled billed fulled filet blet bleat rilled lilt jelled sleet delete pulled knelled palled hulled pilled lalled maillot lolled howlet dilled helled duelled tallit toilet welled pleat chalet chilled shelled yelled
call callee callow calla coaly scall collie gally calo caul coal coala colly cully gall galley cull scale cullay scaly