A really good atomizer that is not just for dripping in, as it has a chamber under the atomizer itself which can be filled with up to 1 ml of extras liquid.
When you flip the atomizer, the walls will be lined with liquid from the tank and you get all the good taste and clean impression that you normally only get from traditional dripping. Or, if you can, lead your wick down through the holes in the bottom.
The IGO F comes with a 510 thread, but it includes a thread cone so you get a handsome completion for an ego battery, if you want to use one. See the photos.