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.
garotted garrotted garoted grottoed garroted grouted gritted garreted carted grated guarded carotid greeted curetted corotate quartette graded crated carded grided courted gradate quartet crowded curated gridded created quirted cardioid corroded graduate gratuity corded credit curded
rotted garrotted garotted trotted parroted charioted deratted grottoed dratted garroted sorted garoted proteid curetted ported corotate rutted fretted fritted rotate rooted rioted retted ratted gritted grouted pirouetted prettied routed rerouted shorted
garote garotte grot garrote garrotte griot groat grotto grotty grout grouty