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.
filly fill folly fille fully fillo felly fly fil foully faille full fila fall fell fail vill file foil flay filo fley flawy fella villi feyly villa foley villae fellow valley flooey follow fallow volley fellah felloe flu ghillie flue viol feal feel flea flaw vial floe flee foul flew veil flow fowl fool fuel vile foal vail
billy hilly gilly filly illy willy dilly silly chilly ill noily jill pill will mulley really belly jelly leally bill vill gulley maill fillo bully gill rouille galley mill mouille pulley chilli gully hillo alloy shily shelly chally wily scilla tuille telly taille dually doily zill rille allay welly dally quill riley cullay villi valley rally coolly lily alley molly holly kelly fille lolly sill nill daily jolly mille faille felly villa bialy bally colly knolly nelly bailey kill oily gaily golly pally pily dill folly fill ally cully roily foully volley sully sally hill rill dolly delly dully tally till wally wholly fully woolly chill gally shill yill