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.
fordo foredo ford fiord fard fort fared forty fraud farad forte freed fried fired faired feared forrit furred faraday ferried fart frat fret frit
fordo ordo cored credo gored lord orad horde moored cord sord dorado teredo uredo whored wordy chored parodoi cardio hoard rodeo redo foredo ford fiord bored board gourd hairdo pored sored tardo torot weirdo word chord shored
for fora foray fore forwhy four afore