"I find recommendations here and ask friends, to start. Lots of good discussion here about variuos juice companies; I've found a couple good ones that wy. Also look for cheap sample packs. Some vendors will sell their whole line in smaller bottles for a pretty good price. There's no way around spending a bit of money trying different juices, unfortunately, but after awhile you'll find a few go-tos that you can (hopefully) buy in massive bottles for cheap. As far as PG/VG, the basic rule of thumb is that the higher the VG, the more vapor and less throat hit, but more PG will generally give you better flavor. This is another preference thing, mostly, but beware of high-VG juices if you use a tank since VG is thicker than PG and can have trouble soaking into the wick. Hope this helps!" - Brett Kelly