Seeing that there is no vacuum or chimney. Size is of paramount importance.
Little snubby types are basically warm & vaporous.
Large rda's are cooler, leading me at least toward hotter builds.
Pay attention to airflow,,you will need it.
Snubby,,,,Nixon v2, mabey best of class. Followed by the Narda, difficult to build, yet if done right, The Flavor is shocking.
Large, the 24mm Goon, really have to try to get a bad vape out of it.
I have an authentic Kennedy,,prefer my Goon. Oh the Heresy of the last statement!
Tweener,, the Magma, a classic dripper. Deep wells, clever a/f management for single or dual coil. Screw top, you'll never damage a 510 trying to pull off a cranky top cap..
Great info, thanks!