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.
lore lory lire lyre lure lour loury laree lorry laurae lar lear lair leer lier liri lehr lari liar lira laari laura leary leery
bore fore shore wore whore tore dore sore pore ore more lore kore gore core chore yore re or