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.
ribald riblet rabbled rebuild rubbled rebelled rebilled reboiled rebuilt
bald ribald piebald abled bubbled mobled baldy bobbled babbled bled bold baled fabled dabbled doubled wabbled cabled cobalt gobbled kobold quibbled nibbled pebbled hobbled nobbled rabbled cobbled kibbled rubbled gabbled dibbled gabled tabled wobbled
robalo friable fribble gribble dribble dribbly triable tribal tribally