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.
nubbly nubble nobbily knobbly nobly nebuly nibble nobble nubile noble nebula nebule nebulae
hubbly bubbly wobbly nubbly knobbly wabbly rubbly pebbly viably quibble rubble suably bobble dabble gabble nobly wabble ably wobble chubbily dibble nibble nobbily nobble pebble doubly hobble cobble gobble feebly nubble rabble nebuly kibble babble bubble shabbily
nubby nub knubby nobby nubia snub snubby