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.
britt brit bruit bright barite bratty burette biretta brut beretta burrito bort brat berretta birretta barrette borty bride brute boart beret braid buret boride baryta borate baryte birdie berate barret buried burdie hybrid berried bourride bard bird brad bred burd
britt fritt barite write writ rite riot verity brit cowrite grit curite merit parity purity yperite rewrite diorite territ trite chariot krait bruit burrito lariat ferrite forrit frit fruit verite heriot ferity crit gritty griot norite periti pyrite rarity cerite droit trait worrit charity