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.
derails drails drawls drills trails dirls hydrillas trailless triols trials trawls drolls drools trills troilus tearless trawleys terrellas tirls trolls trulls torulas trellis
rails serails trails grails drails frails brails derails burials urials morals crawls grilse ariels borals gharials aerials drills trills serials cereals brills brawls broils gorals ferals drawls trials triols wooralis graals chorals trawls chorales craals goorals corrals reals kraals roils grills morales riels riles oriels rales arils krills rills corals orals ooralis zorils perils parrals murals prills frills rials shrills