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.
grottoed garotted garrotted grouted garoted gritted garroted grated greeted garreted corotate curetted carted grided crated graded created crowded curated carotid curtate guarded gridded gradate courted quirted corroded graduate gratuity keratoid quartette carded corded credit curded
grottoed ratted retted rotted rutted fretted fritted curetted garotted garrotted gritted pirouetted prettied deratted dratted trotted
grotto grotty grot garote garotte griot gritty groat grout grouty