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.
metre mitre meter metro mature meeter meteor metier meatier miter muter mater motor madre madder matier matter mitier mooter mudder mutter madeira mattery moidore moodier muddier
metre tare tore couture trey true tree poetry retry retore stare niterie stereo outre mitre strew attire deter meeter teeter quatre tetri litre sheeter tire tyre dere stere future coterie fetor feature foetor peter retro retire satire nature nitre batterie metro store meter suture mature dieter goitre tetra quieter titre hetaerae shoetree