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.
lariat laureate lyrate lard laird lardy liard lirot lurid laired
lariat rat verity ferrate crate heriot corrida merit curate carate frit rite riot write forrit myriad jurat giardia rate variate fruit norite great grat grit errata diorite chariot derat whereat trite pirate treat territ rato droit pyrite kraut parity serrate burrito cerate cirrate karat rarity barite prate korat riata brat frat groat aerate orate verite carat borate gyrate hereat narrate writ querida ferrite krait crit irate cardia muriate cowrite aurate fritt grate phorate curite berate ferity bruit brit purity lyrate rewrite britt seriate cerite karate deaerate periti yperite drat hydrate griot trait triad prat urate worrit derate charity
lari lar glare glaire clary flare flair blare alary alar liri liar leary lear laurae laura laree lair laari claro glair glairy glary