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.
pollened pollenate planed plained planned polenta pollinate planet plenty plant plaint pliant
pollened lend relined planed kilned gleaned cloned cleaned julienned bylined blende blend beelined alined aliened lined leaned relend taloned