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.
conoid conidia cnida conto coned condo canid cnidae ganoid canoed coined conned quinoid coigned gonidia coontie connote candy caned conte count gonad canned cannot county gowned connate quoined
conoid lianoid quinoid hyenoid ganoid hypnoid nod shinnied cnida poind node ranid denied snood hinnied nodi monied nidi phonied canid tineid whinnied monody honied anode synod dynode snide nide ponied hymnody canoed
con canoe coin cone coney coni conn cony coon icon cocoon cogon scone