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.
helot hallot halt holt held hilt helloed heeled howlet heiled helled healed haloid haloed halloed holloed hilloed hulloed halloaed hallooed hilloaed holloaed hollooed hulloaed hullooed hold
helot lot blot fallout felt float flota flout belt gelt clot galiot galloot gloat melty maloti pelota pilot pullout relet rollout sellout zealot zloty delt welt chalot shelta kelt bloat ballot maillot allot lout loti lota hallot loot bailout cloot clout galliot galoot glout melt knelt pelt plot reallot relit celt slot zlote dealt delta challot shallot shelty
helo halo heal heel heil helio hell hello