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.
vegans feigns vagueness vacancy vicunas
bogans lagans ligans pagans wigans logans hogans vegans toucans cans cogons coignes koans gains pekans regains signs deigns beignes wagons biggins cains coigns leggins pignus canes scans logons waggons agons chicanos noggins chicanes naganas guanos queans guns muggins feigns kaons pecans recanes segnos decanes tigons kains skeans canso guans kanes piggins iguanas reigns jacanas skeanes kanas cocains shoguns