All great answers so far I think to help you, as a beginner would you prefer something with built in batteries, or a mod that uses replaceable 18650's?
Built in batteries are good if you don't want to spend extra money on a charger, and kits by brands such as Innokin are very popular, especially for newer vapers.
Replaceable batteries are great as you can just pop another battery in when the one you are using needs charging, but you will have to buy an external charger for this too, plus the batteries.
Depending on what you prefer would make me choose between the two, and also if you want a lot of cloud and power.