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.
ploys polys plows plays polos pilose pilous polios pals pulleys pileous puls plus pillows pols pules palsy pails pleas plies piles palls pales peels peles pawls pilus pilis pulis plews pools peals pulse poles pulls polls polis pills poilus pilaus palais policy please pilaws pileus polies poleis plisse paellas palazzo pelisse pollees paillasse palliasse
alloys cloys ploys helloes folios blows allows hollows bullous villous clays halos fillos lyse valleys jellos fleys allays delays belays tallows sallows foleys slows floss hallows polys halloos helos holloas felloes alleys niellos shallows cholos telos doyleys xylose slays relays polios muleys milos plows mallows pilous pillows bellows oleos waylays halloas hullos bialys galleys hulloes kolos hilloes gloss gulleys holloos gallows follows lows baileys callous volleys mellows filos floes halloes calos flows plays hulloas loos close fellows phyllos billows hellos hulloos belows flays helios hilloas lose lilos lays leys villose aloes looeys hallos fallows loss haloes glows callose mooleys jealous nolos mulleys hollos olios gleys polos filose gallous pulleys bolos silos holloes kilos hillos solos zealous pilose dialyse duellos cullays tellys wallows cellos willows chylous sloes yellows
ploy ply paly pily play plow polo poly