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.
doubles doblas diobols tubules dibbles dabbles tubeless taboulehs tables tabboulehs diabolos tableaus taboulis tubulose diabolize tabooleys tablas tabulis
baubles doubles roubles rubles wabbles nobles tabboulehs sables rubels bubblies lobules foibles bubales bobbles bubals bibles dibbles wobbles jobless nibbles cobbles kibbles oboles gables rabbles cobles rubbles babbles bibless taboulehs tables robles blues tubules cables fables boules boulles mobiles hobbles biles bless bubbles boles nobbles quibbles webless pebbles jubiles abeles gobbles ribless gabbles bales ables ciboules dabbles nubbles wobblies