House flooded

Yes fans. As many as you can find.

If you can find them rent dehumidifiers.

Will dry it out fast.

Don't know how bad the damage in your area is but if you can find them do.

Everyone rents them.

Home Depot has one that pulls out 18 gallons per day from the building for 48 buck as day.

https://www.homedepot.com/tool-truck-rental/mobile/Dehumidifier-18-G-Day/F203-A/index.html
The key is air movement. Lots and lots of fans.

If you get started fast enough you don't even have to rip out sheetrock it will dry it all out.