Synchronization of multiple streams of cameras

Can you please recommend some good resources for synchronisation of tens of cameras, and best practices for ingestion of those streams of data ? (Kafka / Flink / Apache Spark, etc.)
I am connecting to my cameras in RTSP and I would like to process those streams in parallel by knowing that frames are in sync.
Thanks !

Can you get timestamp from rtsp stream and sync streams by timestamp? What’s your user case?