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.
hullooed hulloed hallooed hulloaed hollooed hulled hilloed halloed helloed holloed hilloaed halloaed holloaed hilled hauled helled haloed hollaed haled holed haloid hallot hailed howled healed heeled heiled held hold halid helot halide halite howlet
looed hullooed hollooed hallooed wooled soloed pooled cooled hulloaed hilloaed hulloed halloed holloed holloaed hilloed helloed folioed flood blood bloody nielloed haloed siloed halloaed tooled fooled shooled led
hullo hulloa hulloo hull hallo halloa halloo hallow hello hillo hilloa hollo holloa holloo hollow ahull