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.
studies studdies studios studs studious steadies stades statues stadias situates stets satieties states stouts steads steeds status sedates setouts statice statusy stats stots stoats stotts
studies duties cheddites dudes steadies lyddites iodides etudes audits todies toddies toadies tidies teddies daddies dauties dowdies doodies dites diets didies hodaddies quietudes podites studdies studios chedites
studio stud stadia studdie study