Any preferences?
The Schiit Audio Magni 2 should work. Same applies to Magni 2 Uber, Asgard 2, Violectric and Burson Amps, Matrix M-Stage, SPL and so on, there are many high fidelity solid state amps that can drive both with ease.
If you want a tube amp, maybe to tweak the sound a bit, you should look into hybrid amps, like the Vali or Lyr 2.
OTL tube amps like the Valhalla 2 tend to work very well with high impedance headphones like the HD800 but not as good with low impedance planars.
Best Luck!