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.
garrotted garotted garroted garoted grottoed garreted grouted gritted grated carted guarded greeted carotid curetted corotate corroded quartette carded grided graded crated curated created gridded courted gradate crowded quartet quirted cardioid corraded graduate gratuity
rotted trotted garrotted garotted proteid routed grouted gritted ratted retted rioted rooted rotate rutted fretted garoted grottoed fritted parroted corotate rerouted curetted dratted garroted deratted charioted
garrotte garrote carrot carroty garote garotte garret grot