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.
ruffians raffinose refines ravens ravins ravines hryvnias rifeness roughens roughness
ruffians fans fins puffins divans caffeins foins bowfins boffins biffins avians affines finos fawns finis fauns fanos fanes coffins paphians refines fines muffins defines tiffins