Many here will recommend Provari or Reo if price is not an issue... well, they will even itf its not. There are, however, less expensive and simpler startup kits. I use the Eroll for smoking simulation and an ego C upgrade (passthrough if that's the way you want to go or standard if not) for a strictly
vaping experience. The eroll comes with mini
tanks and the ego C uses clearos/
tanks/cartos. I recommend cartos... boge 2.0-2.2. I recommend these two for beginning vapers due to being more fiddle-free and user-friendly. There is time to branch out after learning about voltages/ohms/mah, etc... which you will need to know to go with anything that's variable voltage. And the eroll is the only automatic battery you won't need to worry about a killed battery due to leaking IMHO and cartos (without a tank) also decreases possibility of leaks. So, unless you don't want to just get started before studying these two kits will be essentially trouble-free and you'll be less likely to experience dry hits or leaks. Everyone has their preferences and will, no doubt, state them here. I give advise based on the knowledge level of the person asking with an eye to their best chance of success not going back to smokes.