OK, that makes it easier, and also give others a basis for a recommendation. Keep an open mind on the recs you'l get. I got a
tank many love for cloud and flavor but was a bust for me. Doesn't mean it's a bad tank, just ended up not working for me.
I have 3 Engines in my rotation through the day. I like different juices at different times and it works well for me. IMO, the dual Engine is a killer of a tank. Really excellent flavor and pretty decent cloud. Is it a cloud chaser tank, meh, not really. But if you want both it's a viable option. The other one I mentioned earlier with interchangeable decks is the Pharaoh. I use it with the single coil deck that's standard, and use a 4 mm ID coil. Great cloud, and surprisingly good flavor for what is billed as a cloud tank. You could try it with the stock deck, and if you want more out of it get one of the optional ones in some sorta take on a Velocity deck.
Another to consider is say an Aromamizer Supreme V2. Lots of cloud, but I'm not vouching for flavor. A real sleeper that's been around a while is the Crius+. Great on both, comes with a dual velocity deck, and you get an optional quad coil deck too. I never used the quad coil, so no experience to pass along on that deck.