Projectors rhymes with:
injectors, objectors, collector's, collectors, collectors', connectors, defectors, detectors, director's, directors, directors', electors, hector's, injectors, inspector's, inspectors, inspectors', lechters, objectors, protectors, reflectors, sector's, sectors, specter's, spektr's, vectors
Projectors sounds like:
perestroika, persecutors, prehistoric, procedures, proctor's, proctors, prosecutor's, prosecutors, prosecutors'