How do I attach my w-2s from my drive to my TurboTax account

(Added additional comment/option in the next comment below....I am not clear as to what your intention was here)

You can't.......if your employer uses a W-2 download service that has the specially-formatted W-2 forms that can be imported into TTX software, you can import them from within the software......but only AFTER the W-2 download service makes them available.  None of them are active now, and even if you do have your paper/PDF W-2 forms now (doubtful...but possible I guess), they may not have the specially formatted tax download ready.

SO if all you have it the PDF copy loaded on your computer, you can only manually enter the data from it into the tax software...box by box.

Certainly, if you start a new W-2 form on the Wages&Income page in the software, you will be given the option to attempt to import your W-2 from some W-2 provider, but there may be no importable copy available until  later this month.

Hmmmmm...perhaps you were really asking if you can store those copies in the MyDocs section of your Online account.   But they don't get added to your actual tax return...it's Online cloud storage only.

For simple storage of various tax documents from your computer....you click on "Documents" on the left side of the screen after you've logged into your Online account. 

Make sure you keep the exact-same Online account paid for every year....and back them up to your own flash drive for secondary safe storage at home anyhow..