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.
calces calyces calices coalesces culices calesas calloses calluses clozes glaces closes callouses clauses classes cullises coleuses galluses colessees coulisses gallicize gallowses glazes galliasses galleasses colzas glozes classis glasses glosses colossus glassies glossies
calces falces chalices solaces slices cilices pulses policies plaices palaces glaces culices coalesces calyces calices helices valses halluces fleeces fallacies bullaces lycees luces laces malices places polices pollices relaces cylices sluices dulses shoelaces
calesa calos scales callees callose callous calls callus callas caulis caules cauls coalas coalesce coalless coals cackles scalls