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.
pekins pekans pokiness pawkiness pecans pickiness pignus piggins pigginess pugginess pagans packness piquancy pogonias
kins takins pekins skins wakens pekans piggins coins leukons quickens kens cocaines feigns coigns kains recoins weakons kinas kines reigns sequins signs equines noggins likens deigns bikinis ikons muggins quins cocains dickens eucaines gains kinos eikons quinsy quoins beckons beguines koines weakens daikons tokens biggins coquinas leggins cains reckons regains requins sickens skeins chickens