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.
varieties verities variates verites ferities frites virtues veritas forties ferrites frits verts farts frets vertus fritts fruits fortes virtus fortis ferrets viroids fretsaw faradize foredoes phorates ferrates virtuoso virtuous faradise fards forts frats fritz
varieties reties ariettes ferities verities parietes parities pretties purities rarities sureties dirties treaties charities