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.
aural aurally areal areally aril aryl aureola aureole aureolae ariel airily areola areole areolae
aural neural sural dural jural mural rural gyral gharial hurly surreal furl oral crawl drawl horal moral hourly curial burial rail grail zoarial real loral saurel sourly chorial chorale chiral urial trial trail derail feral corral seral graal dourly ferial brail irreal narial drail rale aerial burl kraal curly nurl serial coral parral morale loreal jurel goral frail viral surly oorali craal gooral knurly burly boreal brawl laurel knurl cereal serail areal purl rial curl boral hurl trawl ureal woorali choral choreal churl
aura aurae area areae aria array aurei