I have a clinch ep pedal that has a kbob for variable boost. Somehow I need this too, but in a dual pedal. Maybe with a blues breaker? Get my Mayer on!
I run a modeler into a power station and into a guitar 2x12 open back cab sometimes. Sounds pretty good. Anything cleanish should do. Just experiment and don’t spend $ up front. You probably have something already that will do the job
It’s probably the led. They’re simple to replace. My FX loop bulb went out and I replaced it myself. For some reason the bulb is part of the circuit so when they go out you lose the function.
nano cortex, H9, and a power stage fit on a small board and would cover about anything I would imagine. The update for the nano cortex makes it pretty versatile as far as FX routing.