IRS sent my 1040 back because I forgot to sign an I don't want to wait much longer so what will be best for me to do
For free filing see these sites
https://www.irs.gov/pub/irs-prior/i1040gi--2021.pdf
https://www.irs.gov/pub/irs-prior/f1040--2021.pdf
2021 Publication 17
On line can not be done.