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.
besides beasties besets bests biocides beasts besots bestows basts busts bastes boasts boosts bassets
sides seasides quaysides daysides waysides asides besides resides tsades biocides posties misdoes resids zoisites resites nasties mysids jassids passades pasties sades suicides decides hessites cissoids coesites muscids residues azides sties pesades beasties sites saids deicides