Pedals that stack with the DOD YJM308 Preamp Overdrive

Fjord Fuzz Berserk

Fjord Fuzz Berserk stacks fuzzy on top of the mid-forward already here

Fjord Fuzz Odin

Fjord Fuzz Odin stacks fuzzy on top of the mid-forward already here

Walrus Audio Julia

Walrus Audio Julia's modulated voice goes after DOD YJM308 Preamp Overdrive in the signal chain — it's not there to compete with DOD YJM308 Preamp Overdrive's own mid-forward character

Pigtronix Gloamer Volume Swell

What Pigtronix Gloamer Volume Swell brings here leans toward ambient — that's worth building a pairing around

Boss DD-3 Digital Delay

Put Boss DD-3 Digital Delay after DOD YJM308 Preamp Overdrive in the signal chain, clear of DOD YJM308 Preamp Overdrive's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

EarthQuaker Devices Afterneath V2

Keep DOD YJM308 Preamp Overdrive's mid-forward voice out front: EarthQuaker Devices Afterneath V2 goes after DOD YJM308 Preamp Overdrive 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)