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.
curari curare curara currier crura curer curriery courier carrier quarrier carer corer crier crore cruor career queerer querier
curari ourari woorari urari rare rear roar arrear aurar friar horary curara curare drear terraria urare briar
cur craw cure curia curiae curie curio curr currie curry scurry