Pedals that stack with the EarthQuaker Devices Blackout Gary

Cordovox PH-8

Run Cordovox PH-8 after EarthQuaker Devices Blackout Gary in the signal chain, clear of EarthQuaker Devices Blackout Gary's own gain stage

Walrus Audio Ages

Put Walrus Audio Ages in front and the fuzzy tone leans further toward clean boost

Aguilar Octamizer (Bass Octaver)

Aguilar Octamizer (Bass Octaver) stacks octave on top of the fuzzy already here

Pigtronix Echolution

Run Pigtronix Echolution after EarthQuaker Devices Blackout Gary in the signal chain, clear of EarthQuaker Devices Blackout Gary's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Walrus Audio Melee Wall of Noise Black

Walrus Audio Melee Wall of Noise Black's ambient voice goes after EarthQuaker Devices Blackout Gary in the signal chain — it's not there to compete with EarthQuaker Devices Blackout Gary's own fuzzy character — goes in the amp's FX loop (or last, into a clean amp)

W-LM Compression Fracture

What W-LM Compression Fracture brings here leans toward compressed — that's worth building a pairing around