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.
nobly nobbily knobbly noble nebuly nobble nubbly nebula nebule nibble nubble nubile nebulae
nobly nobbily chubbily wabbly doubly diobol rubbly roble pebbly obol nubbly noble nebuly ably knobbly coble hubbly viably feebly bubbly suably dobla tabooley wobbly shabbily
nob knob knobby nobby snob snobby