Two pieces of satisfying hardware I promise will get your newbies coming back.
Mini Nautilus 1 and eleaf 30 watt.
Why? Easy to use. The eleaf can be locked to a wattage by a store employee doesnt have all the temp control nonsense. . The mini nautilus works great and almost never leaks the coils are cheap. No charger needed and charges via USB. And here is the best part RELIABLE. You new customer will trust you and you will sell them coils, juice and sometimes replacement glass for the next year to come!