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.
crawly crawl curly craal coral curial growly corral grayly cruelly curl carl carle graal kraal growl goral grail creel carol cruel gooral gorily caroli curule carrel creole greyly curlew cariole carrell corolla criollo queerly carriole
brawly drawly rawly crawly chorally trawl virally aurally drawl areally rurally orally nearly gnarly marly rally really early surreally brawl serially gyrally narrowly jurally neurally crawl pearly grayly morally growly aerially dearly trawley yearly