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.
cesses ceases sises sasses seises sisses souses susses sycees sices syces saices sauces cissies seesaws
asses gneisses nesses basses mosses tosses sasses wusses sisses tusses fusses cusses fosses josses tasses fesses pisses lasses posses busses loesses kisses pusses losses masses yesses chausses biasses dosses messes mousses wisses quasses cesses hisses guesses susses esses misses bosses musses gausses jesses wrasses gasses cuisses disses chasses chesses passes lassoes muses fuses busies newsies missus bouses cissies bases nauseas easies rises teases leases seis missies hawses feases peases misuse doses coses biases eses tassies bassos douses mouses hoises nooses seas missis cheeses byssus chassis poises ceases vises eases massas poesies daises vases dassies chaoses causes pauses seises chooses souses chouses tawses cassis yeses resews beses reassess moseys reuses lyses paseos sues lases hoses louses isseis puses raises rooses sissies causeys noises leses pussies pases gneissose hissies oases tissues bises buses noses uses loses daisies hussies touses coseys fusees assess peises physes meioses sees mioses tussis cosies fasces disuse lassos gooses kneesies cases gnoses baases houses koussos hoseys niseis gussies kussos rouses gessoes lassies rases wussies bowses gases sews guises cussos posies mises liaises phases ruses oses passus looses issues reissues bossies resees poses poussies sises fossas nouses wises lessees lassis chases tussehs roses sassies dieses chiauses choses lyssas chowses dowses chaises possess
cess cesses chesses cease cussos cusses cassis cassias jesses gessoes fesses ices messes esses eses aces cissy cees lessees messiahs ceases essays nesses cissies yesses