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.
prober pourboire
prober rubier shrubbery drabber orbier grubber grabber cribber crabber ribier robber robbery rubber rubbery ribber beriberi barber briber bribery forbear forebear herbier gerbera crabbier curber grabbier grubbier ribbier drubber shrubbier