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.
regale regal reglue regalia regally rugal rackle raggle recoal recall reglow reguli wriggle rocaille recoil ruckle rugola wriggly
regale gale gal wriggle scale kale reglue glee egal quale aglee agley beagle boggle bugle waggle goalie fugle giggle joggle juggle goggle legal locale miggle ogle regal daggle goal haggle gaggle gaol higgle jiggle gall galea gala begall gley bogle fugal guggle eagle jugal ligule macle niggle raggle vagal glue rugal cicale zooglea toggle wiggle
reg raga reggae ruga rugae wreak break freak freaky creak creaky grego reargue rerack dreg dreggy