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.
violets volts violates voltes valets filets volutes fillets vaults fleets velleities folates velites valutas valuates veloutes filiates foliates flits folds felts velds flats floats flites flotas fields flouts flutes flytes fluyts flatus faults flautas
piolets violets lets cleats gallets bleats billets ballets leets voltes bluets holts colts molts gullets cullets muletas owlets pallets jolts boletus poults relets sallets deletes toilets willets mallets boletes callets bolts rillets sleets pleats pullets culets bullets collets filets fillets fleets valets wallets dolts volts howlets galletas blets gleets quillets millets moults mullets palets pellets chalets
violet vailed veiled vialed violate voled volte