Tanks with conical top caps provide the best flavor, yet I am not aware of many standard atomizers built that way. There are classics, like the Uwell Crown and the Sense Herakles and Cleito that are great for flavor, but you will quickly pass them by once you learn to build coils into RDTAs and RTAs.
Then again, you might not be a direct to lung vaper, and need a tank that has a tight draw for that experience similar to a cigarette. We need more details to give you good recommendations...ie: what device you use, are you looking to upgrade and your vaping style.
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