My advice,
Think back to the very first time you had a cig. Did it taste good? Did it make you feel good?
My first did not taste good, I did not even manage to finish it. I felt sick and stubbed it out when I was less than half way through it.
Stupidly I carried on smoking, gradually I learned to smoke without feeling sick, eventually I actually grew to like the taste. 25 years later and thousands and thousands of pounds later and I was still smoking....
I now think that I grew to like the taste because it meant a relief from the nicotine craving.
A great many people find it difficult to quit, its part nicotine addiction, part habit. We have also been repeatedly told for decades that it is difficult to quit.
NRT can relieve the physical addiction to nicotine, but it does not cover the habit or psychological addictions. Partially because the nicotine is taken into your body much much slower with a patch, also because you are no longer doing something with your hands, I found this especially difficult at times when I would normally have a cig.
A decent e-cig can give you the relief from the nicotine craving, and give you something to do with your hands that mimics smoking much more closely. Initially higher nicotine levels help a lot to make sure you kill off that pesky nicotine craving quickly.
Most smokers stick to one brand, often the brand that they first started on, anything else tastes odd.
I doubt that you will find a flavour that tastes the same as your favourite brand.
Surely its got to be easier to switch to a flavour, one that you actually like the taste of, rather than one that you had to learn to like the taste of?
If you can find a good bricks and mortar shop, rather than an online shop, they will usually let you try different flavours until you find one or two that you like. If they won't let you sample the flavours find another shop!