"Best" really and truly depends on what you personally want out of a vape.
For some its a set up that'll give big clouds, for some the one that offers the best flavour, for some it's the most convenient to use and fill. and for others it's reliability above all else for example.
We can only tell you what we think is best depending on what we prioritise.
After nearly 10 years my favourite set up is still an iStick 30W topped with a Nautilus Mini, simply because I know it back to front, upside dowm, and inside out - but as an old long term smoker I use it with 16 strength menthol chill freebase.
I doubt that would be the choice of many, which is why you yourself have to set yout priorities.
If you could do that, you will get some better advice.
Welcome and best regards meantime.