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.
refuse refs reefs reifs reface rufous revues revise reifies rifs revs roves rives ruffs roofs raffs riffs raves roughhouse roughs ruffes raphes reives reaves reeves raffias reavows reviews revoice roofies roughies
fuse refuse suffuse defuse diffuse effuse rufous tofus roughhouse dufus baghouse doghouse fuze defuze bughouse feus coiffeuse doofus fuss taphouse fusee chophouse
ref reef reefy reif reify revue tref trefah