Welcome back!
My go to is the Vision Spinner variable voltage battery (4.3v) with a custom HH.357 Cisco Spec Hybrid atomizer at 2.0 ohms. These atomizers are amazing (so is the price, lol). They will last a loooong time as long as you don't drip dark, sweet juices like I do. I have one that I use only fruit flavors and it's still going strong at 8+ months.
While out and about I love my Anyvape Davide mini with a KPT single coil. Waiting for the Aspire Nautilus mini to come out, though. The vertical coil is said to be a game changer in coils...