You can contact all the issuers of the tax reporting forms for replacements  OR   get an income transcript from the IRS for each of you ...  https://www.irs.gov/individuals/get-transcript

The documents you need to prepare your tax return come from a wide variety of issuers, and it will be hard to gather all of them together again after such an unfortunate event as a fire.  So sorry.

Here is a checklist of documents you may need to replace from the sources that issued them:

https://turbotax.intuit.com/tax-tips/tax-planning-and-checklists/tax-preparation-checklist/L7LHiDqGJ