Unfortunately this is impossible for anyone to answer.
We don't know anything about his vaping style, juice mix, or anything.
If you are talking strictly for appearance, you could get the Smok TFV8 in black.
But that tank is a huge cloud producing flavor machine.
If he isn't into all that you could go anywhere from the Kangertech SubTank, Uwell Crown, Sense Herakles, Tobeco Super Tank, the list would be months long.
What tank is he using now?
Do you know what settings he uses his mod at?
Are you familiar with the particular vape juice he is using and what mixture it is?
I'd like to offer advise but what you asked is similar to sending a new neighbor to the car lot and tell them to pick a car for you without them knowing you.[/QUOTE
Ok..Im going to do my best to answer your questions because knowing my luck my neighbor would bring me a busted up pinto instead of a smoking hot 67 camaro lol...
He has a smok tfv4 and during the day he is using a dual coil arctic. I think on the tfv4 he has it at 85 and on the arctic its like at 55. He has just started making his own juice but I am getting some recipes together to surprise him with some juices ( betty white and john wayne, etc..), but I haven't tackled that yet..he is making an 80/20 mix. Not sure if all that helps. I'm really new at all this but gotta keep hubby happy and keep his tank steaming haha.. thanks again