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.
retinas retains retines retinues rutins reattains retunes retenes ratines routines rootiness ruttiness reediness readiness redans redons ratans rattons rhytons rattans radians redness reddens ratoons rattens ratteens rattoons redenies rudeness routinize rowdiness ruddiness rottenness radons
patinas retinas latinas tins mutines codeinas medinas patines cutins poutines phytins latinos mattins routines luteins satins steins detains reattains lattins matins tunas tines tineas tains etnas patins ratines retains attains biotins retines catenas rutins stains zeatins chitins
retina retinae retine retinue ratine retain retene retune rutin cretin