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.
troaks taroks trokes traiks trocks tracks troikas turks trogs treks trikes triacs tarocs trucks tricks trigos drakes drouks tragus turkois teargas tricksy turkeys turacos turquois touracos turacous dirks trugs dorks trigs torcs drags dreks darks turquoise drecks torics durocs terraqueous darkeys darkies drogues torques derricks
croaks troaks barks rakes wracks rocks crakes crooks arks groks carks corks caracks hayracks marks parks breaks phreaks reracks brooks darks freaks drakes rakis taroks rakus traiks trocks warks charks rooks arracks quarks narks barracks cracks crocks creaks curacoas cariocas carracks irokos larks harks karaokes araks frocks porks brocks sarks forks dorks borks drouks berakes tracks brakes racks wreaks trokes works sharks
troak taroc tarok track traik triac trock trog troika troke turaco turacou strake stroke strook