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.
pekans pecans pekins pagans paganise pignus piggins packness paganize piquance piquancy pogonias pokiness
pekans cains guanos guans gains pecans reckons pekins scans likens naganas leukons skins quickens skeanes decanes jacanas takins vegans toucans iguanas weakens cans wigans canso chicanos bogans kains kanas cocains kens kaons kins pagans recanes canes regains ligans logans lagans skeans sickens kanes daikons ikons dickens eikons tokens hogans wakens queans weakons koans chicanes beckons chickens