The MTG Tube Distortion from Fender is a drive pedal with a difference... Unlike many pedals with the word "tube" in their name, this is not intended to push your tubes to break-up nor emulate the sound of tube break-up; it actually contains a genuine vacuum tube just like in a vintage amplifier! Running the tube at a full plate voltage (but still working from your conventional 9V adaptor), this retains the warmth of tone we all want!
Add in the dedicated, footswitchable boost section and this pedal can provide all the drive and volume level boost you need.