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.
darkeys darkies darks drakes turkeys dorks dirks dreks dregs drouks taroks trokes drecks darics trikes drogues druggies derricks drags turks drugs treks trucks traiks trocks troaks tarocs tracks durocs tricks hydroxy teargas torques tricksy turkois
darkeys turkeys rakes trokes rekeys rickeys rykes berakes birkies jerkies brakes burkes crakes perukes porkies darkies drakes trikes shrikes
darkey dark darkie darky drake