Please help me recover salt water flooded tech

Hi, it's been a couple of weeks now since my house got flooded, I have headphones, mice, controllers, etc etc. All flooded with brackish water, I've been unsure how to clean it all. I have left everything to dry out, and what I have tested mostly seems to be working but a lot of the unpainted metal screws and so forth are rusting. Unsure if internal components need some sort of cleanse? Should I submerge all my gear in clean water then let it dry for a week to wash the salty water off? Disassemble everything and wash with distilled water, isopropyl? Something else? I am evidently pretty clueless when it comes to this.... Thanks

edit - also have an e-scooter, battery powered tools (brushless and brushed) etc