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.
helleris helleries hellers healers heelers hillers hollers hullers halers hailers haulers howlers hauliers hilarious hollowwares
helleris sailers fillers whalers moilers howlers halers tellers milers fliers fullers dialers collieries jolliers hillers liers fallers coolers lears ballers railleries heelers balers coalers loris fellers fowlers milliers gillers galeres vealers fuellers clears nailers yellers cholers willers wailers tillers talers duelers dalliers sealeries ceilers reelers pullers polers chillers peelers tollers leers tailers sellers rollers poolers kneelers maulers lehrs gluers voleries quellers hauliers lullers bailers galleries celeries colliers valuers cullers hullers millers fooleries feelers billers clerisy bawlers healers railers helleries laris bowlers callers blears hellers jailers coilers dealers fulleries fleers mewlers talliers hailers hollers milreis walers filers fuelers knollers gallerias boleros beliers lollers haulers killers veilers gaolers boilers mailers mullers pollers reliers sealers duellers toilers shellers oilers woolers pliers pulers ralliers rulers salliers sillers diallers tailleurs tilers toolers wheelers choleras yowlers
heller helleri hellery healer heeler hiller holler huller