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.
platy plat pleat plate plait polity palate plotty plot pileate pelt playday plateau paleate palliate pilot plaid palet plead poult plutei pullet polite piolet pellet pelota pallet ploidy pelite pleiad payload pollute palette pullout palladia pallette pled plod paillette
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
pilau pilaw play plea pula splay