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.
duolog duologue dialog dialogue
duolog colog log logo blog flog clog glogg sawlog slog dialog
dol doolie duly dull duello doily dole doll dolly doolee diol doula dooly doyley doyly dual dually duel duelli dulia dully idol