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.
slates solates slats solutes salties salutes silts salts sluts sleds slots slits ciliates salads sleets slides saults sallets zloties sellouts zeolites silds sloids sloyds solids solidus
alates cholates delates eluates collates relates toluates dealates elates valuates maleates plates fellates gelates filiates palliates solates malates dilates violates folates slates chelates oleates ciliates gallates foliates palates pleats lealties platies halts elutes mullites clades pelites galettes halites oeillades pollutes bleats calottes boletes gluteus culottes alts floats plats nullities salties platys zloties shelties realties toilettes dualities ballades velleities solutes slats glutes rillettes blades blighties paillettes cleats flats allottees pleiades fealties lutes veloutes flites roulades glades plotties pluteus ballutes realities plaits blites pallettes lats flytes qualities salts salutes lottes elites gelatos oolites blats iolites lades lattes laities phyllites roulettes polities gelatis voltes palettes volutes kilties balatas illites flatus galateas jollities mulattoes flutes malts velites zeolites deletes dilutes tillites bloats gloats hyalites
slat slate slatey slaty salad salt saltie salty silt silty slit slitty slot slut slutty solate