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.
lier lira lear lire liri liar lehr leer lair leary leery lar lari lore lory lour lure lyre laari laree laura lorry loury
bier vier gooier kier lier pier wrier zooier doughier tier shier er