While suggestions like the previous post are very useful, there's always a caveat when it comes to "tobacco" juice flavors. Based on my experience with over 30 tobacco juices (and similar comments from other ECF veterans), taste is more or less subjective. This is especially true of any juice that purports to be "Marboro", "Kent", "Winston", or any other popular analog tobacco brands. One must realize that vaping simply cannot reproduce the subtle burning-of-tobacco flavor that some might expect. So, you may get a juice expecting certain tobacco flavor and be disappointed. This is true especially if you buy a juice based on its "label" or "name" that suggests those popular cigarette brands. Also disappointing is when you read on these forums that for a previous "Winston" smoker, certain brand of juice is the best. It might be, but there's probably greater chance that it won't be. Again, this is not to say that these juices aren't good (they probably are), but far from the taste/flavor that the purchaser might expect. For new e-cig users, this is even more true since they don't know what to expect from these juices, and their expectations may simply be unrealistic (i.e. expecting the same flavor as the analog counterpart).
Given all this, once you get past these expectations, there are many juices out there that will give e-cig users the same type of pleasure as they got from analog cigarettes (even a better experience, I might add). Trick, I believe, is in getting past the initial differences. From then on, it's all gravy.