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.
retell retally ratel retail retile retool reedily rotl ritually ratal redly rattly reddle redial ritual rudely rattail readily ruttily radially
tell outtell retell tel tall duelli delly dell bedell boatel cutely tele mutely motel lately tael duello steal stela stella stull whitely mutuel hotel teal teel till toll atoll betel botel cadelle luteal ratel kittel telly tela patella stall steel stele still dottel chattel
rete ret treed reread preed greedy creed fretty fret freed breed arete rite rote retie reedy reed rede reata rate greed greet pretty dreed tret