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.
trapezii trapezia trapeze trapes traipse trappose traps tripes tropes drapes troupes towropes trappous tarps trips turps drupes tripos troops
trap drape drapey tripe trope strap strappy