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.
frisees frises friezes fraises foresees frizes pharisees frasses frizzes farcies freezes frizzies forces verses furzes farces phrases varices varuses viroses viruses pharoses phereses ferocious versos versus virosis
frisees pharisees birses arrises arises rises resees irises lorises cruises morrises parises prises reraises cerises trioses braises brisses raises krises hybrises foresees fraises friezes frises brises crises bruises merises orrises praises prisses rerises derrises sherrises
frise frisee fraise fries frieze furies