Plagens rhymes with:
dragon's, dragons, wagons, balbriggans, bargains, bennigan's, cardigans, copenhagen's, corrigan's, diegans, dorgan's, dougens, douggins, dragon's, dragons, feagans, flanigan's, flashguns, gergen's, gilligan's, goggans, gorgons, hagans, hagens, hargens, higgens, hooligans, jergens, juergens, junghans, jurgens, kerrigan's, machineguns, megan's, michigan's, morgan's, morgans, mulligans, oregon's, organs, rattigan's, reagan's, reagans, reagans', regan's, shenanigans, siegan's, slobogin's, slogans, snapdragons, toboggans, vegans, volkswagen's, volkswagens, wagons, wiggans
Plagens sounds like:
pelagians, pelekunu's, pelican's, pelicans, pillaging, placencia, placing, plaguing, plaisance, plascencia, plasencia, pleasing, plucinski, plucking, plugging, policeman's, policing, polishing, polyconomics, polygamous, polygynous, publicizing, publishing, publishing's, publishings, pulsing