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.
kinase kinas kins kinos kines kains kanas koines quinoas guineas guanase kens kaons kanes koans keens coins gains cains quins kenos cannas quince quinsy quoins gainsay goannas guanays keenness
guanase rennase kinase veenas ensue faunas minas sansei scenas guineas mynahs ruanas cannas hanse taenias lianas tineas sunnas faenas donas kanas manas siennas ionise mensae hyaenas whenas unais tenias donsie zinnias sonsie sense lanose mannas vinas manse unease anoas kinas lionise nonas hyponeas pinas pinnas quinoas bunas nanas gnaws lense venose vinasse anise lunas ansae sennas annas lanais linsey nays saunas rinse sensei guanays genoas hennas nose manias nans naos punas goannas pinnace monas pensee mannose nonuse mynas sunnahs cense dense mense duennas donnas anas tenace tense xenias tunas unaus menace unsew chinas snaws hyenas
kina kin kain kana kine kino koine kuna akin skin skinny