Volatile Flex options; help needed!

12 team full ppr

I started off 0-1 and am far from confident in my flex options…

I need to fill out two flex spots between Marshawn Lynch, Amari Cooper, Philip Lindsay, and Corey Davis.

The raiders have a tough matchup in terms of the Broncos’ secondary and Cooper doesnt give me much confidence, while Richard took a good amount of snaps from Lynch against the Rams (maybe its just game planning/Lynch’s illness). Davis on the other hand has a nagging hamstring issue with a nagging QB issue to match. Lindsay, I am just unfamiliar with in general.

Any advice on how to manage this headache would be greatly appreciated!