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.
lidar lieder lader later liter litre lauder loiter ladder latria latter leader litter loader lewder louder leadier littery
lidar dare chider cheddar wider deodar sitar cedary rider raider dear diary aider bider eider feodary feudary voider hider gaydar guider guitar midair radar redear cedar cider sudary deodara chadar cheddary chuddar
lid laid lido lied litai loid elide iliad glide slid slide