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.
readers raiders redders redears riders raters radars readdress retears redress rudders redries ratters ridders reutters ruderies retros redraws retires retrace retries rioters ritters rooters rotters routers writers retirees rotors
faders shaders headers kneaders laders waders readers loaders leaders beaders radars caters chudders guiders wadders eaters hetaeras bedders mudders doers padres nadirs dears madras judders gaters paters raters heders padders madders shedders ladders cheaters chadars weeders waters nodders biders voiders chiders lauders bidders powders fodders boaters codders daters heaters redders madres redears raiders maters dodders gadders ridders coaters aiders seders seaters coders heeders taters hiders needers cadres kidders oaters budders seeders tidiers udders beaters rudders ceders adders cyders deers haters eiders ciders tedders feeders wedders widders chadors cheders chowders riders shudders
reader raider readier redder redear redrew grader trader treader