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.
aliens alienees alines aloins alienness alans alliance
liens aliens blinis moulins bullions lunies elains kaolins felines villeins flense loins villainies loonies malines aloins beelines oleines hellions linos blains lions mullens lins xylenes hyalins colleens cholines woolens relines toluenes delaines plains silenus colonies glens salinas millines poleyns galleons kalians clines paulins galenas jillions linns lines valines billions lense violins mullions baleens alines kilns lenes lenis mulleins felonies villains eloins kaolines bylines leans bowlines millions blennies lenos lens jawlines gleans cullions oleins cleans guylines galleins pleons melenas rellenos collins solions salines pillions zillions talions pollens towlines woollens colins hyalines yeelins
alien alienee align aline aloin