Looking for OT/ICS security resources

I've been tasked with keeping up with the latest threats in OT/ICS security and providing reports to my team. I've read a bit of Dragos' stuff and subscribe to CISA alerts, but does anybody else know of any other good resources for this? Specifically in the manufacturing/aerospace/DIB sectors would be extra useful.

Thanks!

cybersecurity ics ics security ot resources security