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.
dill dilly dell till doll diol dull diel dial deil dally delly doily dolly dully daily duelli tuille duello dually taille dal dol del til dele dahl duel dual dole duly tail tell tile dale toil deal toll tall deli tally toile telly delay dulia doyly doula dooly tulle
bill kill shill will dill vill hill ill gill jill fill maill quill mill nill pill rill sill zill till chill yill