Pedals that stack with the Spaceman Nebula Fuzz/Octave Blender

Cordovox FL-8

Put Cordovox FL-8 after Spaceman Nebula Fuzz/Octave Blender in the signal chain, clear of Spaceman Nebula Fuzz/Octave Blender's own gain stage

Walrus Audio Ages

Walrus Audio Ages stacks clean boost on top of the fuzzy already here

Pete Cornish LD-1

Pete Cornish LD-1 stacks modulated on top of the fuzzy already here

Pigtronix Echolution

Keep Spaceman Nebula Fuzz/Octave Blender's fuzzy voice out front: Pigtronix Echolution goes after Spaceman Nebula Fuzz/Octave Blender in the signal chain so its modulated voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)

Walrus Audio Melee Wall of Noise Black

Keep Spaceman Nebula Fuzz/Octave Blender's fuzzy voice out front: Walrus Audio Melee Wall of Noise Black goes after Spaceman Nebula Fuzz/Octave Blender in the signal chain so its ambient voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)

Jackson Audio Bloom V2 Compressor/EQ

Jackson Audio Bloom V2 Compressor/EQ's own transparent character is the real reason this is worth trying