TH is a factor of both the the power of the hardware and attributes of the e-liquid (i.e., especially nicotine level). You say you are "looking for something..." Since you talk about PG, VG, and flavors, I'm going to assume that you are referring to the e-liquid. [Just remember that hardware power (atomizer resistance and battery voltage) are at least as important as the juice.]
There is no absolute TH
nicotine level; it varies from vaper to vaper. You don't mention the nicotine level of your current e-liquid. Whatever it is, adjust it up a notch, e.g., from 12 to 18mg or from 18 to 24mg. Some people vape as high as 36mg, but I don't recommend it. PG tends to deliver a bit more TH (and flavor) than VG, although VG is great for vapor. Many of us like a combination, e.g., around 75% PG / 25% VG.
And the
flavor of the e-liquid can influence TH, e.g., cinnamon or menthol tends to deliver more of a kick than, well, apple. And
subjective factors, e.g., tobacco flavors (or a strong coffee/expresso) work much better for me than fruits, candies, and beverage flavors.
An
obvious flavor you might like is Applewood Tobacco, e.g., from
Backwoods Brew or
Viking Vapor's Apple Smoke Tobacco. But there are so many other flavors and suppliers of US-made e-liquid you might really like.
ViZi's database is fairly comprehensive (although Backwoods Brew, FreedomSmokeUSA, and Vapor Station are missing).
I suggest that you start with samplers and small bottles, such as
Vapor Station's ten-pack of 5-ml bottles,
DIY Flavor Shack's six-pack of 6-ml bottles, or
Halo's seven-pack of 5-ml bottles. Please don't limit yourself to these few examples. I list some others in
this brief article.
Enjoy the adventure!