I know you asked for suggestions, but be careful because there are going to be wildly different directions offered. I had thought, based on having vaped DV, that you
may like Vermillion River. Here's the thing, they will send you a "free" sample (if you pay a nominal shipping for it), and if and when you purchase liquids from them, that purchase will be covered by a 10 day
money back guarantee if you don't like it (yes that includes eliquid). My point is that if you have felt disappointed by several other vendors, the least you can do is approach the next with a low risk.
I don't like everything Vermillion makes (or any other vendor), but not too many have that type of policy. Also, if you post here
http://www.e-cigarette-forum.com/forum/vapor-station/329822-free-liquid-samples-first-timers.html you will be sent a couple free samples of your choice (if available)--I like VS tobaccos. You could also try liquids that have a great resale value (5 Pawns, Nitelitevapor, Halo, Heather's Heavenly Vapes, AVE, etc.) just in case you don't like them but would like to recoup money lost. Try and find as many avenues as possible (PIF forum is another) where you can sample without putting your .... and wallet on the line.