I ended up purchasing this ABUS 20/80 Diskus Stainless Steel Padlock Keyed Different for my PODS unit. Worked just fine. I am skeptical if anything bigger or thicker would fit.
And $50 is cheap insurance. But I'd still recommend a brake disc lock with a shriek alarm. A good one, like Abus or Xenon.
I have this lock on my storage unit now. I hope it’s better than the garbage I use to buy. I know nothing about locks or picking them, I only mess around.