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.
slipes slips slopes slypes salps slaps slops saleps salpas sleeps sloops saloops
slipes talipes lips clypeus clepes callipees calliopes calipees jaloppies jalopies floppies flips lopes fillips ellipse blypes blips loupes clips kelpies slips slypes elopes slopes tulips
slip slipe slippy salp salpa salpae slap slop slope sloppy slype