Hi, welcome to ECF and congrats on reducing smoking and moving to vaping, that's great. I don't know much about pod mods, and some people vastly prefer them for flavor, but if you are looking for a backup (which yes, you should have) it might be interesting to look at other types of vape equipment, for example a mouth to lung tank, which will be similar to the draw on your pods, probably, and also will give you some other options. Coils tend to be cheaper to replace, and with the right airflow and wattage, you have the option to customize your vape more, by changing wattage and airflow.
Good MTL starter kits would include a Pico 25 (small form factor but has an internal battery, which can be recharged externally if that interests you) although there is also a USB charge only internal battery option. They come with the melo II or III depending on which one you choose, which is a small capacity, medium draw sort of tank. The tanks can also accept other coils.
There is the aspire zelos mod, which comes with a Nautilus 2 tank, and that's a well liked MTL tank by many who are starting vaping, as it has a fairly tight draw. It is on the smaller side of capacity but it's not a super "thirsty" tank.
Many options to purchase, in the US or direct from China. Could look at "vapecrawler.com" if you are interested in this option and it will give you competitive prices from a variety of vendors. If it comes from China, be prepared to wait.
Welcome to ECF and I hope you enjoy your stay here.
Anna