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.
cobles cobbles cables gobbles cowbells cabals gables kibbles gabbles cabalas cabbalas gabelles quibbles cabbalahs kiblas kabalas keblahs kiblahs qabalas kabbalas qabalahs
ables foibles cobles rubles rubbles babbles baubles hobbles rabbles robles kibbles cobbles doubles dabbles roubles fables gobbles nobles wabbles pebbles quibbles gabbles cables dibbles sables nibbles wobbles bubbles bobbles bibles tables nobbles gables nubbles jubilees pueblos jubiles rubels jebels ciboules boules mobiles bales bullies obols boulles cabals diobols bubblies gabelles abeles lobules chablis bialies tablas babuls ghiblis bowless bubales sibyls cibols ballies libelees ribless bubals sabals tabboulehs biles taboulehs sowbellies tabooleys bals boles belies blues belles rebels labels bailees bless kiblas babels tubeless doblas bellies baileys pibals bibless jobless bailies libellees oboles tubules bels webless billies wobblies libels boughless chaebols