Any one that is accurate & repeatable.
I prefer the Intercomp digital, but have used many over the years that I am confident will get the job done.
I still have a QuickCar liquid filled 0-15 gauge that I like. I have also used the oversized analog gauges. Only issue with that is people looking over your shoulder to "help you" read the gauge. Never mind the fact that I'd tell anyone what air pressure we're running if they'd just ask.