Interesting thread. First, although I hate politically correct nonsense, I feel that Anna was not using the PC card, she was stating her personal experience of having difficulty with some rebuilding due to her medical condition, and felt a post (or more) discounted she and others with similar difficulties.
That is a totally valid thing for her to comment on, and I think some responses were condescending and insensitive. Unless you have the same or a very similar condition, you have no idea what difficulties they may experience. That's my two cents on that.
Onward to the OP's dilemma. You want better flavor, are a bit intimidated by building, want a relatively small tank, and think you need a pretty high Ohm coil, and sub-Ohming hits your throat too hard and makes you cough. Hope that sums your concerns up.
I'm a flavor first person and also find that sucking a big cloud in wide open inhales makes me cough as well. I'm pretty new to vaping, but I'll share what I have learned so far. A "good" MTL tank can indeed give excellent flavor. It may take some experimenting to get there, with coils and wicking and such, but it is very possible. I was getting discouraged my first week or more, but things kept improving, so stick at it.
Your wariness at building is understandable, I felt the same way. I dove in, and found it really is not all that complicated, and you can probably master it if you decide to take the plunge.
If you do, then I can tell you that my favorite MTL tanks at this point are my Kayfun Prime clones, and my Doggystyle clones. Both are giving me very enjoyable vapes with a variety of E-liquids. The only downside to these was the waiting time from 3Vape and Fastech shipments

. The prices on these are extremely reasonable.
I also agree with the person who said that you don't have to vape DTL style on a non-MTL tank. Nor do you have to go "Sub-Ohm". I have the OBS Crius II, the Zeus, the OBS Mini, and the Wake. I use them to vape in a sort of modified MTL style, I mainly get a mouthful of vape, and may or may not inhale from there. I do get a different vape quality with these as opposed to the MTL tanks, but I like both.
As to Ohms for your coils, please don't pre-judge what you want. I did that, based on what I had read about MTL vaping. I thought I wanted coils in the 1 to 1.7 range. However, from actual experimenting with the tanks I have, I find that .5 to .6 Ohm coils are working best in the MTL tanks. For the other tanks I think a range of .33 to .6 is suiting me best. Let your tank, coil and wick materials, liquids, and your own experience with the results guide you.
However, you may not be ready to start building. In that case I might suggest the Smok Baby Beast tank or something comparable. The coil is a pre-made cartridge, you just screw it in. The wicking is also in the cartridge, so nothing to do there either, other than to "prime it" with some liquid.
I was truly amazed by the flavor this little fella gives, and it is pretty compact too. Not doggystyle small, but reasonably small. I got it mainly because the price difference between ordering the AL85 Baby Alien mod (which is what I was after) and the kit that included the tank was so small it seemed like a no-brainer. I'm glad I did, it's a fine tank.
Best of luck, and keep up your quest to find what works for you.