Yes, you can take an additional $300 per filer as a charitable contribution for cash contributions made to qualified charitable organizations for tax year 2021. This applies if you are taking the standard deduction. See the TurboTax FAQ I'm linking below.
Can I deduct donations to charity?
The deduction will appear on Line 12b of your Form 1040.
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***