Pedals that stack with the Electro-Harmonix Eddy Vibrato/Chorus

Wren and Cuff Box of War Small Foot Fuzz

Run Wren and Cuff Box of War Small Foot Fuzz into that low gain platform and it finally gets some high gain

Wren and Cuff Box of War OG

The low gain tone has headroom to spare — Wren and Cuff Box of War OG gives it fuzzy to fill it with

Boss DD-200 Digital Delay

Keep Electro-Harmonix Eddy Vibrato/Chorus's modulated voice out front: Boss DD-200 Digital Delay goes after Electro-Harmonix Eddy Vibrato/Chorus in the signal chain so its analog warmth voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)

Fjord Fuzz Mime

Keep Fjord Fuzz Mime after Electro-Harmonix Eddy Vibrato/Chorus in the signal chain, clear of Electro-Harmonix Eddy Vibrato/Chorus's own gain stage — goes in the amp's FX loop (or last, into a clean amp)