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.
salient salinity silent sealant slainte selenate selenite slant slanty selenide solenoid soland
client salient lent lint flinty talent glinty silent glint reliant valiant polenta fluent plenty blent violent elint linty lento leant plaint pliant eluent relent diluent flint cholent