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.
furls furless farls farles ferals frails frills ferulas ferlies ferrels ferules fearless ferrules fireless virls gharials variolas varioles virelais virelays
burls furls nurls churls curls purls hurls knurls saurels pyrrols parrels byrls farls rules dirls orles farles quarrels torulas perils borals sorrels corrals gorals harls merls earls neurulas orals parles parrals pearls ferrels arles ferals carols murals merles whorls parols goorals aryls jarls beryls morulas morels chorals ceorls carles arils herls barrels sorels birles carrels carls tirls zorils whirls marls trulls girls ferules gnarls corals jurels ferrules laurels gruels birls nerols ferulas morals virls shorls
furl farl farle ferlie ferly frill frilly furrily