As an old Valkyr main I usually see people complaining about how trash her 1 & 3 are, I don't disagree. Replace Ripline with Pillage from Hildryn and voila! You have turned Valkyr into an immortal shield and armor stripper whilst cleansing allies of those nasty statuses, furthermore it synergizes with and fixes her 3's glaring issue that Valkyr isn't a shield based frame.
Use 2 & 4 and recast if need be.
Arcane Energize+Equilibrium w\ Synth Deconstruct & fiber Panzer Vulpaphyla will keep you topped off on energy and health, just pick up orbs as per usual.
I use Arcane Precision for my kitgun alongside my Zaw which I will link below because we use Arcane Dexterity on our Primary & Secondary, Pick your favorite Primary & Secondary it doesn't really matter (Yay!)
This will give us 120% faster swap speed, a 20s combo duration and 720% Weapon damage increase. Yes that's right dexterity affects all weapons not weapon classes.
Basically if you don't understand, see enemies on radar within 70m? Pop 1 & 2, melee at least 6, pop 4? or just run around with your guns for ~20s. Keep the 6 stacks of dexterity rolling alongside Warcry and use your Hysteria for it's innate life steal for heals or to just be immortal for awhile since energy isn't an issue. Use Pillage to acquire and replenish shields, be a pal and keep an eye on your HUD, Only you can prevent forest fires er...I mean status effects.
Valkyr Talons: https://overframe.gg/build/226883/valkyr-prime-talons/red-crit-corrosive-325-chance-15x-mult/
Panzer Vulpaphyla: https://overframe.gg/build/226880/panzer-vulpaphyla/equilibrium-panzer/
My Zaw: https://overframe.gg/build/226885/plague-kripath/all-you-will-ever-need/
My Kitgun:
https://overframe.gg/build/226887/sporelacer/100-89x-mult/
My Primary: https://overframe.gg/build/226888/kuva-bramma/mama-bramma/