Action (a la Iron Man)? Checkout Robert Venditti's X-O Manowar (2012). Humor, aliens, and dinos? Fred Van Lente's Archer & Armstrong (2012) and Ivar, Timewalker (2014), or Quantum and Woody. Mutants? Joshua Dysart's Harbinger + Imperium run, or Eric Heisserer's Secret Weapons mini. Russia winning the space race? Matt Kindt's Divinity and Eternity. Blockbuster style story-telling with plenty of action? Jeff Lemire's Bloodshot run - Bloodshot Reborn > Bloodshot USA > Bloodshot Salvation.
"Ninja-K" (not Ninjak) has just started and the first issue is pretty cool... digging into the past of the "Ninja Programme" starting with Ninja-A, etc.
In December, Quantum and Woody will get a new ongoing by Daniel Kibblesmith and Kano. http://valiantentertainment.com/2017/10/20/valiant-presents-quantum-and-woody-0-0001%C2%BD-a-free-digital-first-prelude-debuting-today-on-valiantentertainment-com-and-the-official-valiant-app/
Free previews of 12 #1's http://valiantentertainment.com/2017/07/27/valiant-unveils-the-brand-new-valiantentertainment-com-debuting-today/