Vaping is such a different experience than smoking that this is hard to answer,
I used to smoke camel 99's
I started looking for a substitute for those and found PureCig from FSUSA and really loved it,
I still smoke it often for that real analog taste and feel,
But vaping opened a new world of flavor to me and now I may vape a maple or pancake or waffle flavor in the morning, purecig during the day mixed with some thin mint or limbermint (cucumber, lime, and mint with tobacco), and then finish the night with peanut butter cup or apple crisp,
Vaping is really a different experience.
You may start with MarlB or some other tobacco flavor to try and mimic what you were smoking before but vaping is so much more and often you really don't have to try to find a direct substitute for what you smoked when you change to vaping, Really the wealth of flavors available to you can make the transition from analogs to vapor easier just because they taste so much better while still giving you the nic you need to curb your addiction