Welcome , but that's a loaded question . You don't mention what sort of situations you might be in , at any particular moment . That being said . A VV device , such as the Provari , with a Vivi-Nova
tank , is a pretty good setup . Provari's are not cheap , but are well worth the extra , because they are very well made , and give you more feedback on voltages , ohms used , etc . A lot of people prefer bottom fed devices , like a Reo . Also a very well made device . You can use different voltages , but you have to change out the batteries , to do so . Very handy when driving . Give a little squeeze , and you have a fresh supply of
juice to vape . The closest to dripping , without the hassle . And there are lots of different devices out there , that are far cheaper than the first two mentioned . So part of your decision might be influenced by how much you can afford to spend . I personally have both of those devices , as well as numerous others , and they all serve a particular purpose . Good Luck