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.
salty salt slaty sault silty sallet sleety slutty saltie salute slitty slatey slot slut silt slat slit salad sleet sloyd slate zloty solute solate sailed sealed zealot sallied sellout celt sild sled slid sold
fealty malty salty realty lealty alt vaulty kilty salt fault palet valet malt floaty alit laity fluty vault jollity baldy faulty polity silty shalt milty zealot gault sault melty platy reality quality alto guilty slatey dealt chalet rialto halt nullity jolty slaty zloty duality chalot shelty
sal sail sale sall sallow sallowy sally saul seal