The Spesh Pizza Rack is a fine rack and can hold quite a bit of stuff. Our shop owner had one and would load up the top and have two of the gravel Ortliebs underneath with a folding saw scabbard mounted to it as well.

It depends on what you need of it though. Most touring cyclists traditionally would go for a lowrider rack like as a Tubus Duo or Tara or might just stick with a smaller rando rack but it all depends on what you need and what you are carrying.