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.
sluts solutes salutes slots slats silts slits salts sellouts sleets slates saults solates solidus salties sallets celts silds sleds salads slides sloids sloyds solids zealots
gluts sluts lets flautas bluets cults rillets fillets alts voltes halutz howlets volutes pullouts billets gilts gallets veloutes glouts milts blets jolts slits ballets fallouts quillets hilts culets bailouts belts ballots collets pelts ballutes celts shallots chalets poults willets wallets moults tilts dolts lilts delts zealots felts callets relets gullets valutas pallets piolets flouts melts plots silts kilts fluyts saults bullets owlets mallets altos helots clots lots holts quilts faults blots lutes bolts molts flats filets cultus colts flutes lats halts jilts gelts clouts salutes violets salts flits volts louts allots lits pilots lutz vaults cullets blats reallots malts palets pollutes elutes slats guilts maillots klutz valets mullets gaults pullets plats glutes sallets kelts slots rollouts solutes deltas millets dilutes tallits pellets toilets welts rialtos wilts chalutz sellouts sheltas
slut slutty slued slot slitty slit slaty slatey slat slate silty silt salute salty saltie salt solute