I will be visiting these cities in less than 3 weeks. I will be lost without detailed and up to date paper maps of these cities. They must include all the metro stations and their names, or they will be useless to me (I have a couple of older maps of these cities and can't use them precisely for this reason).

I haven't been able to find anything good on the internet. The ones for sale are either exorbitantly expensive, or you can't preview them to see if they're suitable.
Google maps is just a nightmare, as you have to zoom in to a ridiculous degree in order to see most street names. Just awful and terribly overrated.

I've downloaded maps.me, but I never rely on electronic devices (which can fail) when I'm traveling to an unknown city (they're also a cumbersome and inefficient way to navigate a city).

Links are appreciated.

Thanks