I have two suggestions, both echo opinions expressed in prior posts.
My first and top recommendation is absolutely a Reo. No it's not a Ferrari and yes it's oldschool. But the major selling point for me, and the reason I always go back to it after messing with my other mods is that
it has never ever wronged me. It just works.
-6ml juice capacity
-Nice selection of atomizers, and compatible with cartomizers in an emergency
-Takes flat top batteries, Sony VTC5 is my choice
-It's a mechanical. This may or may not be a selling point for you, but it is for me.
This is mine:
I run a modified Trident V2 clone at .37 ohms or so. This cranks out somewhere in the neighborhood of 40 watts, which is pretty nice. dual 7 wraps of 26 gauge kanthal with Koh Gen Do cotton. Excellent flavor, tons of vapor and it works great. I don't get leaks, and dry hits don't happen unless you mess up, because you squeeze the juice bottle to re-wet the wicks. Your in control.
My second recommendation would certainly be the Provari, although I would absolutely wait for the new P3. I don't need to say anything about this that you can't research yourself. 20 watts device, and super slick looking. Provape has stated that they are shooting for a release before December of this year, and that on release, they will be releasing a variety of colors. It's in the official P3 thread.
As for toppers on this one, I'm still on the hunt for the perfect one in prep for the P3. My nearest choice so far has been the Aspire Nautilus. I have an authentic Kayfun with a glass kit and top fill kit, and I have a bear of a time getting a nice build on it. I'm sure I'll get it right eventually though.
I have a pontus and a big dripper and these don't perform well at 20 watts. They are a nice concept though, but they really need to be built down in the .3 ohm range to satisfy my tanks.
I had a great experience with the Kanger Aerotank Mega, but I bought replacement coils which had little circular juice channels in them, and the coils that worked good for me have slots. If anyone knows where to find the slotted coils, please let me know.
I have a fogger V4, and don't care for it much. I also have an Aqua, and it's quite a bit better, but it's only a 21mm tank, and probably won't look fantastic on the P3.
With all this said, I used to have a Pyrex RSST when I had my Provari v2.5. I used this one for months before I bought my Reo. I drilled the top cap out to 5/64s and it was a very nice draw with a nice amount of vapor. I could take really long draws on it, and even though I had to do the genesis tilt while vaping, it really was a pleasure. I built 2.4 ohm microcoils with 8 or 9 wraps of 28 gauge kanthal on #500 steel mesh. Only problem was that I had to dilute my juice with distilled water by 30% or more to get it to wick properly. I DIY my own juice now, so I don't imagine this would be a huge issue nowadays.
I just picked up the Aspire nautilus today, and really like it. There is a new tank out now called the Silo tank, which is a revised nautilus. Steel over the tank section with a middle section exposed so you can see your juice level. Much wider airflow options than the nautilus, but it's out of stock right now. These only go for 35 bucks, and I expect this is going to be the one that I'll pair with the P3.
That's all I got though, which is quite a bit!