Who to rank up?

Jacob72518

I’ve recently pulled a 6* Domino from compensation rewards!! I also have a 5* Cap MM, awakened, at rank 4. I am currently at 6.2.4., with the intention of doing Labyrinth after 6.2 completion. I have 5* Red Hulk for synergies (no massacre). Who should i take up? Cap MM would be my first r5, and Dom would be my first r2. Thanks y’all!

SuperiorSymbiote

Cmm

Jacob72518

Edit: I do not have Nick Fury, nor have i made an initial Lab clear. Thanks!