I agree with the
kayfun/ Russian
tanks for sure, someone mentioned the fogger but that's a dual coil design so imo would stay away for now. now it can be very confusing about these kayfuns because there are so many clones about. there are some great clones, but some bad ones as well, if you can swing an authentic new or used, it potentially would be less hassle. as for a mod, imo at first stay with a vv device and not a mech and personally I would go for at least one that is 15 watts this way you can build
coils in a much wider range. I know its easier said then done but a provari is one of the best vv mods in the world and well worth the money, here again you can pick these up used in the classys. a kayfun and provari set up is the best choice imo for you hands down. also if for some reason (which I doubt) you don't continue to vape or decide to go back to protanks( which I doubt after you vape this set up) you can always re sell without a negotiable loss (as long as they are authentics)