I wouldn't recommend box mods for your first vape because then you would have to learn about battery safety and ohm's law so you don't become one of those horror stories where people have their battery explode in their face. I would recommend a regulated device you would still be able to attach a RDA on it. Then drip your oil on the prebuilt coil and let it soak up on the organic cotton..
Eh, it's really not that complicated and definitely worth learning. I knew all I needed to know in less than 5 minutes of searching and reading. Google bless google.
To sum up...There's an equation to follow but you don't need to know it. All you need is the Ohm resistance for the coil you're using, generally listed on the coil or packaging of the tank, the voltage of your battery which is on the battery or vape mod box, and the wattage being supplied at the coil which is part of the equation.
You don't even need to learn what goes where. There are websites dedicated to being calculators just for this hobby. You plug in the info on your gear before you buy it and it tells you whether your battery can handle the Ohm load that's being drawn from it without blowing you up.
The only other thing to keep in mind is DO NOT BUY CHEAP BATTERIES. Each one of those batteries can be equal to a partial stick of dynamite and a cheap battery is a single drop or overcharge from blowing your face right off. Buy top quality batteries and check your numbers to make sure things work and don't leave it on in your pocket where the button can be pressed indefinitely. Safety check complete.
Oh, and I bought an airizer Q years ago. Eh, the bag feature was useless. Could take 2-3 minutes plus to fill a bag and they weren't even that big and had no valves so you had to build your own which cost another 10-20 bucks.
It was alright though but if I ever get another it's either gonna be a volcano for a bag model or a dedicated, good quality, whip model.