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.
meant manta menta manat mantua mentee manitu manito manteau mend mannite manatee mint manitou minty monte maned menad maund mount maenad manned maundy mehndi menudo minuet moaned mind
leant meant ant dent santo bent genet tanto tenet senti paint centu jaunt sent went rant rente panto peanut qanat canto yenta shanty chanty tenty vaunt vent haint hant faint giant chianti cent cuneate kent neat lento manat haunt feint gent janty gaunt quaint quanta anti banty manta cant quant tent lineate menta canty lent aunt want hent kente anta ante taint daunt sente saint bento cento taunt pent rent scent pant chant chaunt riant shanti shent panty yente
mean meanie meany man men mawn amen maun mien manna meno main meinie mano mana meiny many menu mania moan mane omen