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.
hallooed halloed hullooed halloaed hollooed haloed holloed hulloed helloed hilloed haled hulloaed hilloaed holloaed haloid helled hallot hilled hailed hulled hauled healed hollaed halid holed heiled howled heeled halide halite halt held hold helot 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
hallo halloo hallow halloa hall halo holloo hulloa hullo hollow hillo holloa hollo hilloa hello hallah hulloo