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.
facies faces faeces fasces fauces fices fyces feces fazes feases feazes fizzes ghazies fuzes voces vases fezes vices fuses vises fosses fuzees fusses feezes fezzes fossas fesses fusees ghazis phases phasis phizes fuzzes voices vicious
facies dioecies cis hyraces paces gussies fasces lezzies faeces hussies poesies juices laicise cozies bossies tizzies seises easies sissies ghazies rices lassies busies vices voces doozies chaises maces taces bizes dices sices deices daisies sassies daces sycees wizes fices puces posies nieces peises luces cissies kneesies mises raises faces fauces noises bices liaises cess baizes hissies bises ices lazies hoises cosies feces guises missies phizes laces laicize pieces sises cees fyces maizes pussies poises peaces voices newsies sauces poussies races sizes vises rises daises saices aces seizes recess diocese lycees dizzies syces duces tassies dassies wises wussies deuces choices