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.
lums lumas loumas lams looms limas limos limbs lames lambs lamas limes loams ylems limbus limeys llamas lamias lemmas limbas limbos lambies
bums hums geums gaums gums lums mums neums rums sums doums chums