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.
tarocs taroks trocks trogs torcs troaks tricks tracks torics darics durocs triacs trigos trokes trucks tricksy teargas turacos troikas turkois turquois turacous touracos turks trugs treks trigs darks turquoise drouks tragus drecks traiks trikes terraqueous darkeys darkies drogues torques turkeys derricks
rocs tarocs durocs crocs frocks mercs arcus darics seracs circus progs orcs trocks torcs barcas groks recs rocks arcs brocks narcs lyrics cercus heroics marcs taroks sargos sorgos frogs pargos orcas largos torics narcos grogs crocus crocks cariocas cargos trogs
taroc tarok troak trock trog troika troke stark stroke strook