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.
alts altos alates allots allottees aldose allods alludes
alts halts poults moults milts malts kelts quilts bolts gaults faults felts vaults volts dolts silts welts salts belts holts cults pelts molts melts lilts guilts kilts colts jolts hilts jilts gilts gelts delts saults tilts celts wilts