Systematics rhymes with:
automatics, automatics, dramatics, mathematics, telematics, automatics, charismatics, dramatics, informatics, klezmatics, mathematics, numismatics, pneumatics, telematics
Systematics sounds like:
sediments, sixteenths, standex, standish, standouts, stands, statement's, statements, steinmetz, stendig, stentz, stints, student's, students, students', stunts, stuntz, systematic