Can somebody recommend good charging cables with the data lanes disabled? Would put my mind at ease when I'm traveling.
You could do that, but then you'd need to forgo USB Power Delivery, Qualcomm quick charging, etc. One thing I've heard other comments mention here is a USB condom (USB data blocker). It's just a male to female adapter with only the power lines patched through, not data lines.
Not only do they allow safe use of Arbitrary power ports but they also allow me to charge my phone from my laptop without syncing for updating things…