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.
arils ariels arles aryls airless areolas areoles aureolas aureoles arrowless
arils zorils perils riles parrels carls orles goorals quarrels orals farles reoils ferals rials virls aerials herls rails carrels furls rills brails grails grills marls morels sorels drills shorls dirls chorals whirls serails troilus trills purls trails merls gnarls grilse ariels roils parols ceorls nerols corals corrals burls girls jurels gharials broils earls aryls frills jarls riels beryls drails brills birles urials ferrels trials carols frails gorals arles oriels carles farls byrls krills parles hurls churls murals pyrrols barrels nurls borals merles burials parrals knurls morals harls curls laurels whorls saurels serials pearls sorrels birls prills derails tirls triols shrills