As already pointed out in this thread, ECF has all of the information you need about products and vendors. The trouble is finding it, especially for a newbie. The Fasttech thread is up to some 14,000 posts.
No matter how good a vendor or product is, there will be positives and negatives to be found. Some will have their groupies who will defend something to death. Others have their professional ringers who will throw in false reviews and who are staunch defenders of garbage service and product.
There are reviewers out there like PBussardo who will give outstanding (funny too), impartial reviews and technical detail. Others like Nick on GrimmGreen are a little more subjective, but a it is a place to start. YouTube has too many reviewers who try hard but are terrible.
This industry has grown from a cottage industry into a multi-$billion business with a mind boggling development in new products and vendor growth.
Then there is the price point which is all over the place, sometimes by a 100% or more. Pennyvape is a good comparison shopping site and ........ finds good daily deals. Some vendors rebrand products with their own name and charge a hefty mark up. Others, like VaporKings don't.
When I started vaping some three years ago, I googled ecig reviews and got burned badly by overpaying for underperforming products. There are a ton of bogus review sites out there which are sponsored by some very unscrupulous people. It does not take much to put up a web site these days. After reading 3 or 4 positive reviews, it's easy to fall into the trap they set.
You may be able to find local B&M's nearby to check on products and flavors to get a feeling for what you want. Here, product choice and juices may be all over the place, not to mention pricing! Then do your comparison shopping.
Undoubtedly, some will pounce on me for making a suggestion to the detriment of the small entrepreneur. My attitude is that nobody told this person to jump into what has become a brutally competitive market. Would you eat at a restaurant and pay exaggerated prices for poor food and service?
There is no easy way. Do your research, take your time, and be patient. Also, be prepared to make the wrong choice once in a while. The goal is to stay away from burning tobacco, and there are many roads you can take to get to that goal.