The NFL rarely sees many quality quarterbacks hit the open market, with most signing a long-term contract extension with their current team. There might be some back-and-forth that suggests a deal won’t get done, but in the end, most high end quarterbacks never hit the open market.
I don’t expect that to change much, but the going rate for a high quality quarterback is going to get very interesting over the next 9-12 months. There are a host of quarterbacks entering their walk year this fall. Drew Brees has the best resume of them, but would likely sign elsewhere for a two-year deal, maaaaaaybe three years.