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.
drivel travel dareful direful trivial direfully hydrofoil trivially trifle deerfly travail trefoil trevally
drivel shrivel surveil marvel grovel gravely gravel corrival caravel carvel frivol bravely arrival rival revel reveal travel ravel
drive derive drave dreigh driegh drove trivia