Protector rhymes with:
detector, transtector, collector, connecter, connector, decter, defector, derecktor, detector, director, ector, erector, fechter, hector, injector, inspector, lecter, lector, nectar, objector, prechter, projector, rector, reflector, schechter, schecter, schlechter, sector, specter, spector, spectre, spektr, transtector, vector, waechter, wechter
Protector sounds like:
predictor, protester, protohistory