I picked up a couple of juices that I thought might be kinda close to cigarette flavour with my first order three weeks ago. My thinking was that having something closer to cigarettes would give me a closer replacement, and so I'd be less likely to miss the real thing.
I did discover a couple (the two JokeSmoke juices from Jugheads) that were surprisingly reminiscent of cigarettes (surprisingly, in a good way, not a bad way

) I'm using them now as my go-to vape during the day, because they're pretty mild. They're slowly dropping down my list in favour of stronger flavours.
My favourites are generally tobacco-ish flavours. I'm liking the Hot Rod (from Jugheads again) and the Halo Torque. They tend to remind me of pipe tobacco, before you burn it and wreck the smell. It hasn't encouraged me to go back - more of a "wow, that's the way I always thought it should taste, but didn't" kind of thing.
I stumbled across someone reviewing tuna flavoured juice on YouTube the other day. (Sorry, no link). I didn't think that sounded terribly appealing.
Poutine flavour, though...