Semi finals need QB advice (1 Viewer)

I have Ryan who is on the road against SF. They’re the #1 pass defense on the year, but got lit up last week, also Ryan could get garbage points if they get behind. Ridley being out doesn’t help though.
Some of the options on the waiver:

Manning vs. Miami 

Brisset @ NO

fitzpatrick @ NY 

mayfield @ ARZ

Ryan isn't Brees... ignore last week and look at the larger body of work, meaning I don't start Ryan

Mayfield has a good matchup and has finally started performing a little bit.

I don't trust Fitz or Manning.... especially if Fitz could be without Parker

I probably prefer Mayfield or Brissett here.   Falcons feel like they could get shutout against the Niners.   Mayfield has a good matchup so probably the best bet.  I included Brissett as my #2 choice only because New Orleanes lost Davenport and Rankins to injury this week, so might be strapped for getting pressure vs. a good Colts OL.  

Mayfield is the only one I'd start over Ryan.