Tennessee, Cleveland, New York Giants, Las Vegas, NY Jets, and New Orleans are definitely in the QB market. Indianapolis and Seattle could do something if the right situation comes up.
Then there aren't many options available outside the draft. Sam Darnold is the best free agent, but no way Minnesota lets him go. Then you have Kirk Cousins, and then a bunch of guys from Zach Wilson's draft class on expiring deals. Not exactly a hot QB market.