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.
plaits plats plates pleats plaids platys pelites palates platies plots pelts polities plateaus palets politesse poults palliates pleads pilots paillettes pelotas pellets pullets piolets pleiads pallets pluteus pollutes pleiades plotties payloads playdays palettes ploidies pullouts plods plotz palladous palletise pallettes pelletise poultice
plaits filiates tillites elites valuates floats slats palates gelates elates galiots halitus hilts pelites violates colitis galliots bloats foliates flites malts guilts malates dealates cholates toluates dilates solates silts milts flats oleates wilts quilts jilts ciliates fellates litas illites plats gelatos pleats blites eluates alts maleates lats flits phyllites bleats gloats collates halites plaids ileitis gallates lits blats gelatis palliates slits folates velites balatas tilts miladis halts kilts lilts relates gilts platys iolites plates alates salts cleats chelates delates oolites flatus mullites slates zeolites tallits tuladis hyalites
plaid plait split papillote aplite polite ploidy plied pleiad pleat plead playday platy plateau plate plat pelite palate paillette polity papillate splat uplit