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.
slaty slatey slat silty salty slate sleety solate slutty slitty slit slut silt slot salt sleet salad sault sloyd zloty saltie sallet salute solute ciliate sellout celt sild sled slid sold
slaty platy lat vallate faulty zloty quality malty bullate bleat blate duality jolty glady collate guilty gelate blat gelato elate cholate delate fluty velate milady fellate nullity float plait bloat pleat reality relate silty slate malady plate folate melty gallate kilty malate fealty jollity lealty gelati vaulty polity cleat lati alate latu lady violate milty slatey late dilate dealate solate slat salty realty belady gloat balata laity plat floaty palate flat chelate shelty