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.
tillered tailored tolerate dullard dolerite telluride tellurite
fullered hollered tillered cellared bleared tailored soleret pillared leered lured allured blared flared glared solleret fleered cleared clerid collared colored galleried velured
tiller tailer tailleur taller teller tiler toiler toller stiller stillier