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.
conto count conte canto condo county conoid cunt coontie connote cant connate canty coned cannot coined conned coigned conidia cuneate kent
conto onto gentoo junto canto condo conte count bento lento pinto punto cento donut tenuto unto joint into mondo mount finito bonito biont manito monte nonet fount font panto point rondo santo tanto tondo wont
con coin cone coney coni conn cony coon icon scone