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.
fugus fugues fugs fucus fucous fogs vugs figs fags vagus ficus focus vuggs fucks fiques fucose vogues vacuous faux vigs
fugus vacuous mugs mucus lugs caucus quags gigues hugs vugs jugs vuggs vogues dugs rugs togues rogues chugs nocuous vagus fugues jukus pugs negus muggs magus kagus leagues agues bogus guys bugs fucus fugs teguas segues tugs rugous yugas