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.
saurian saran sarin sciurine serin serein serine serrano sierran sorn siren syren serene
saurian durian urine taurine curran purin purana parian neurine biriani murein buran hariana furane furan burin murine dourine purine sciurine durion turion ran rin urn