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.
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billions solions bullions zillions mullions cullions lions talions hellions jillions pillions millions lins nylons galleins violins gallons collins linns blinis bouillons jawlines kaolins eloins malines lines bowlines alines moulins billons clines clons bylines hyalins shalloons chalones talons gluons colons salons clowns relines salinas violones pleons plains pylons colones paulins kaolines felines galleons beelines colonus villeins blains felons balloons clones loans mulleins galloons oleins elains saloons belons halons villains liens loins colins valines guylines kalians linos aliens melons clonus millines reloans loons ballons salines solons aloins towlines cholines hyalines yeelins
milline million millennia mullion