Schlechter rhymes with:
collector, lecter, lector, reflector, collector, connecter, connector, decter, defector, derecktor, detector, director, ector, erector, fechter, hector, injector, inspector, lecter, lector, nectar, objector, prechter, projector, protector, rector, reflector, schechter, schecter, sector, specter, spector, spectre, spektr, transtector, vector, waechter, wechter
Schlechter sounds like:
salzgitter, schlachter, schlageter, schlichter, slagter, slaughter, solicitor