There are salvage places like Bontrager's that will buy them for parts. There is a lot more than you think that is salvageable. Judging that water is halfway up the side of the trailers, things mounted up high could all be salvageable like:
-A/C units
-Microwaves
-Fantastic fans and vents
-Ceiling lights
-Top bunk mattresses if no mold growing yet
Also things not affected by water like:
-Shower units, toilets, sinks, faucets
-Holding tanks
-Windows
-Rims/tires, axles (not the brakes and bearings)
-Awnings
-Steps
-Stabilizer jacks
-Antenna
-Ladders
All can be cleaned up and sold for a few $ at a salvage yard. Probably not the fridges since the electronics are likely wet, but for sure the cooling units, inside bins, shelves, etc. Radios and TVs may still be good if above the water line in some trailers, like in a 5er bedroom.
Some are farther underwater than others in the photo, so what you can get each trailer will vary.
