This is being pretty widely reported now, but here is PFF chiming in about it. 
 

BREAKING: Clemson and Florida State have reached out to the SEC about joining the conference, per @MarcRyanOnAir pic.twitter.com/k7j4JDBPQq
— PFF College (@PFF_College) August 2, 2021

There are also rumors floating around that the SEC said "No thanks". What an offseason. I don't know what to believe anymore.