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.
quatre cuatro quoter quittor couture quitter quieter gator cater cuter cadre gater coater goitre gaiter gutter guitar cutter couter catarrh cattery cattier cautery coterie goutier guttery guttier
quatre tyre madre mitre mature neater goitre later gater padre oater rater cater couture viator retore satyr heater stare feater store eater suture feature tatar beater titre attire cheater boater dare dearie satire tire mater nature metre nitre true litre gator pater outre retire coater cuatro trey hater seater cadre stere tare strew tarre dater future tater tore water tree shoetree
quate qat quad quit quite quota quote equate quacked quaked squad squat squatty