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.
curule curlew curl curly carle cruel curial creole cariole cruelly carl carriole craal gruel carol coral creel crawl caroli carrel corral crawly grille carrell corolla criollo quarrel queerly guerilla
ferrule ferule rule curule truly role burley pyrrole prole parley ruly orle morula charlie barley neurula virile merle girlie birle rale torulae rile ferula morulae ferlie carle torula puerile parole curlew parle charley neurulae trull ferulae farle morale hurley gruel cruel chorale
cru cur cure curia curiae curie curio curr currie curry guru kuru ecru scurry