Drew Brees, perhaps?
I always thought Peyton was the closest to Marino in this generation amd Brady is closest to Montana.
Tannehill is going to the current QB that resembles Bob Griese because Tannehill is actually going to get us two rings unlike Marino.
Like others here, Rivers reminds me of Marino sometimes. Rivers is more bratty, but they both show a fire to compete and win. To my uneducated eyes Rivers' throwing motion reminds me of Dan's.
Rivers doesn't have Marino's arm strength, pocket awareness or quickness of release. I don't see it.
Rivers to me too, I always thought he had that fire and quick release of Dan although I never really liked rivers personally, go figure