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.
hullos hulloes hulloas hulloos hulls hollos hillos hellos hallos holloos holloes halloos hollows hilloas halloas hallows hilloes holloas helloes halloes halls hulas hells hills hauls helos halos hollas haloes helios hollies hallahs hueless hols heelless hilus heils heals holes hales heels howls hails haoles holies hoyles
fillos hullos phyllos hillos niellos duellos hallos cellos hollos hellos jellos culls fulls hallows follows billows loos ghylls holloos callous callas haloes balls knolls pilose halloes lows mullas helloes helos bullous halloas ills quolls lalls hilloas falls bolls gallows callose malls villous cullis belows solos paellas jills filose sallows mellows polos sloes galls hulloas rills folios folles tulles lose mills nills tolls selles nulls wallows wells wills polios plows challis zealous chills cholos shallows tailles shills sills yells tallows dalles hells phallus fellas floss fallows hulls maills telos tells palls calos rolls fells hulloos fellows helios gallus dills mells gloss olios vills pillows villose jealous failles kilos lolls gills glows hollows sells hilloes halloos alloys follis dells ballsy mulls ploys jells hills xylose bolos bells ollas kolos loss hulloes filos bulls halos allows bellows villus filles hollas boulles ells quills floes holloes quells belles rouilles molls callus fills bills felloes rilles lilos alls holloas villas mallows halls oleos tellys talls flows pilous close polls nolos gallous cloys gulls milos blows aloes calls knells kills dolls tuilles cells scillas pills zills tills pulls slows wallas walls willows milles tallis challas lulls chillis chollas chylous dulls shells silos yellows yills
hull hulloo hulloa hullo hall hill hallah holloa hollo holla hilly hilloa hillo hallow hollow hello halloo halloa hallo holloo holly hell hula haul ahull