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.
pecans pekans pagans pekins paganise pignus piggins packness paganize piquance piquancy pogonias pokiness
cans scans toucans pecans canso cons gains logans canes beacons vegans icons lagans hogans chicanes pagans kanes neocons pekans recanes skeanes deacons naganas jacanas guanos kains decanes skeans regains kaons iguanas koans queans acnes bacons wigans cocains macons kanas ligans guans racons recons bogans cains chicanos