Here's a salary cap tracker for all teams, which I think needs to be considered in the conversation of which teams are most likely to trade for Stafford:
https://www.spotrac.com/nfl/cap/2021/
Many of the teams mentioned as potential trade partners are going to have challenges to fit him under the cap.
Also, here's are article from Touchdown Wire outlining the reasons why they think Stafford would be bargain for any acquiring team:
https://touchdownwire.usatoday.com/l...p-quarterback/
Lastly, I don't see any info to suggest that Stafford has a no trade clause in this contract, but if he does that could affect things as well, and may force an acquiring team to renegotiate his salary or extend him.