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.
recant recaned recount reknit reknot reckoned recoined reconned regained reignite
cant vacant decant scant secant recant picante quaint qanat scanty piquant gaunt cocoanut quanta quant cunt canty canto taggant
recane reckon recoin recon regain arcana arcane