If you are looking for a small MTL tank, a Nautilus 2 might get the job done although keep in mind that if you use the fill line, it really is only about 1.8--1.7 capacity so depending for how long your work day is and how much you vape, you may wind up needing refills. The Ijoy elf is a good MTL tank and takes N2 coils, it was pretty much designed to eliminate some of the hassles of the N2, it's an easy topfill, still has a metal sleeve, and just is easier than the Nautilus 2. The flavor is good, as well. 
As far as pod mods, my experience has been that they can provide a very nice vape... .except when they don't and then become a bit of a pain. Depending on manufacturer, once the pods/coil burn out, they can be somewhat expensive to replace, depending on the maker of course. With that said, I think there are some good ones out there. The Vapatico solo isn't a bad vape, but the pods are fairly expensive for how long the coils last, although I don't think that's true for every vaper. If you can find one that satisfies you all day without a refill, that could be useful as far as being low maintenance. Unless you need another pod in the middle of the day... It's space efficient to carry a backup coil, not as much with some pods.
Just my (still slightly incoherent) thoughts.... But having different toppers for a mod you use can be a nice thing.
Anna
As far as pod mods, my experience has been that they can provide a very nice vape... .except when they don't and then become a bit of a pain. Depending on manufacturer, once the pods/coil burn out, they can be somewhat expensive to replace, depending on the maker of course. With that said, I think there are some good ones out there. The Vapatico solo isn't a bad vape, but the pods are fairly expensive for how long the coils last, although I don't think that's true for every vaper. If you can find one that satisfies you all day without a refill, that could be useful as far as being low maintenance. Unless you need another pod in the middle of the day... It's space efficient to carry a backup coil, not as much with some pods.
Just my (still slightly incoherent) thoughts.... But having different toppers for a mod you use can be a nice thing.
Anna