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.
toluol toluole toluyl tolyl tallol telial
toluol loll lull lulu alula pilule cellule salol xylol tallol toluole toluyl
tolu toil toile tola tole toll tool atoll stole