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.
trigos trigs trugs trogs taroks trikes traiks trocks tragus triacs trokes troaks torics tricks tarocs tricksy turkois turacos troikas teargas turquois touracos turacous dregs drugs drags treks torcs turks turquoise tracks durocs darics drouks trucks terraqueous darkies drogues torques turkeys derricks druggies
trigos erugos rugosa sargos prigs largos gregos cargoes viragos viragoes frigs forgoes foregoes farragoes aerugos rigs burgoos brigs argosy rugous rugose cargos grigs pargos rerigs sorgos trigs
trigo trig terga toric traik triac trick trickie tricky trike trog troika trug strick strike