a 19" PC crt might actually be closer in size. Arcade monitors normally have the correct viewable size advertised like TV sets did, while CRT PC monitors always inflated the size by including non-viewable area.
Bigger issue there is that most PC monitors have huge neckboards compared to arcade monitors, there could be clearance issues there.
Beware of red tents with bad or missing monitors, they use a unique monitor (an 18") that is literally in nothing else.
How would a 17" PC CRT do in one of those? I'm sure it wouldn't be hard to adapt one to fit on the mounting bracket, and you'd maybe need to make a custom bezel.