Here's what rhymes with proteron.
don non drawn gone von con dawn lawn yon hon wan bon fawn han pawn schon yawn bonne khan sawn sonne vpon brawn prawn tenon faun john gnawn upon thereon baton spawn swan whereon yuan exon redrawn begone pecan lasagne undergone salon positron echelon paragon chaperon chiffon overdrawn aileron hereon predawn tarragon autobahn leprechaun trimaran upsilon outdrawn withdrawn thereupon whereupon polygon denouement foregone pantheon marathon octagon forgone hereupon pentagon amazon antiphon epsilon woebegone carillon neocon emoticon methadon lexicon automaton rapprochement hexagon mastodon heptagon cordovan frogspawn phenomenon pantechnicon Words that almost rhyme with proteron
long wrong com song calm bomb palm mom bom homme vom balm gong nom rom som tom dong mam prom prong thong aplomb pom pong tong twang bong iamb along strong belong quam prolong throng embalm qualm sarong becalm dingdong lifelong pogrom singsong livelong salaam yearlong consomme erelong mahjong nightlong intercom cardamom firebomb supermom born corn borne torn worn barn horn warn yarn morn mourn thorn shorn darn porn tarn lorn scorn sworn adorn unborn outworn lovelorn unworn forlorn reborn stillborn forborne peppercorn timeworn lowborn firstborn unicorn waterborne careworn forewarn foresworn sweetcorn forsworn