Pedals that stack with the EarthQuaker Devices Grand Orbiter Phase Machine V2

Walrus Audio EB-10

EarthQuaker Devices Grand Orbiter Phase Machine V2's own modulated character is the real reason this is worth trying

Xotic RC Booster

What Xotic RC Booster brings here leans toward transparent — that's worth building a pairing around

Eventide Space

Keep Eventide Space after EarthQuaker Devices Grand Orbiter Phase Machine V2 in the signal chain, clear of EarthQuaker Devices Grand Orbiter Phase Machine V2's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Maxon AD-9 Pro Analog Delay

Put Maxon AD-9 Pro Analog Delay after EarthQuaker Devices Grand Orbiter Phase Machine V2 in the signal chain, clear of EarthQuaker Devices Grand Orbiter Phase Machine V2's own gain stage — goes in the amp's FX loop (or last, into a clean amp)