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.
tolyl toluyl toluol toluole tallol telial
tolyl loll lolly lowly allyl fellowly hollowly mellowly molal sallowly slowly slyly xylyl toluyl shallowly yellowly
toil toile tola tole toll tolu tool atoll stole