That's a little more information than you provided in your first post. That made it sound like you hadn't tried anything but, the tank. To go from that experience straight into mods would be a mistake.
As for my personal experience, I'm afraid we like different things. I prefer dripping but, I like a cooler vape. So, I use 901s. I'm in the minority on that one. You seem to be wanting more heat. What I will say is that the ones that really like heat seem to like the LR 306 atomizers for dripping.
The Kgo battery probably won't be much of a step up from the ego. Given that you actually have done a little more exploring than I thought, I'll revise what I said previously and advise a VV. While you like dripping, I don't see you saying that it's the answer for you. The feeder mods really are just a good way to drip more conveniently or if you use a carto on them, a convenient way to keep the carto wet. The lavatube has a nice price but, it's limited by it's current output. So, some dual coil cartomizers won't work on it.
The
SmokTek Varicool wouldn't be a bad choice. I'm not sure how long the plastic case will hold up. Considering how clumsy I am, in my hands not long.
It's more money but, I have a
Buzz Pro. It will take a beating. I'd mention the Provari but, you're about to get 10 recommendations for it and it's a lot more money.