My daughter and I enjoy eliquids from Mt. Baker Vapor, VaporBomb, The Vapor Room, Killer Juice, Seattle Vapors, ITC Vapes, Vape Wild, and The Broke Smoker. All have a good variety of flavors, reasonable prices and shipping charges, good customer service, and good turnaround time on orders. Sign up for newsletters and/or "Like" on Facebook to keep up on sales and coupon codes.
If you have a local vape shop that allows you to taste various eliquids before you buy, that is an excellent way to see what flavors and/or vendors that you may like. My daughter and her boyfriend ventured into a local shop and tried a brand of eliquid that costs a bit more than what I usually pay (the vape budget usually comes out of my disposable income). She really likes it, and got me a bottle to try. Since we both enjoy the flavors we have gotten, it is worth it, to us, to spend a bit more once in a while for this "premium" eliquid.