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.
assize asses assais assess assays
size assize resize gussies hissies dassies sizes cosies seizes hussies reseize wizes cissies posies poussies poesies kneesies maizes laicize disseizee phizes newsies seize lassies daisies sissies sassies easies missies baizes sizy busies bizes bossies pussies sice disseize tassies wussies