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.
bort borty boart borate brut brat brit bruit beret britt brute buret board bored baryte boride bright baryta berate barite barret bratty biretta beretta burette brad bred bard berretta bourride burd barrette birretta bird braid breed bride bread beard broad brood bared barde brede
bort fort mort ort port sort tort whort wort short