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.
glossies glosses glassies glossas glasses glozes closes gallowses galleasses classes classis galliasses galluses colossus calloses colessees callouses coulisses clozes glazes glaces glasshouse clauses culices calices calluses coleuses cullises gallicize calces glacis
flossies glassies lassies glossies plisses classis palsies jealousies blesses lasses falsies lassis lassoes lessees loesses losses paillasses galliasses flosses glasses floosies coulisses glosses jalousies blisses molasses classes palliasses colessees pelisses galleasses plusses
gloss glossa glossae glossy glass glassie glassy glows