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.
serow ser sorrow seer sear zero sera suer cero sere serai serry sieur sierra sri sir sari soar sora sore sori sour cere sura sure sire
serow row cheero trow sorrow prow frow cero narrow marrowy grow hero vrow vrouw gherao furrowy euro furrow morrow aero arrow burrow brow borrow barrow arrowy harrow crow marrow farrow zero cheerio yarrow