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.
retunes retines retenes retinues redness retinas retains ratines ratanies rudeness routines redenies reattains ruddiness ruttiness readiness rootiness reediness ratans redons redans rutins rottenness rattens reddens ratoons rattons rhytons rattans ratteens rattoons rowdiness radons radians
attunes retunes tunes tuns tines dunes ketenes quietness mootness neatness butanes ratines tones tunas retines routines soutanes stones duotones wetness witness chutnees butenes patness tynes ketones fatness meetness fitness mutines phytanes patines jitneys atones hotness poutines retenes cetanes stanes stuns tautness whatness witneys chutneys
retune retene retina retinae retine retinue