Maybe you're looking for the wrong thing? I mean you only have a handful of tobacco juices you like and pretty much any vaper will like the occasional tobacco juice no matter what their typical flavor profile is. Maybe you're just not a tobacco vaper? That happens to A LOT of us. I thought I'd be, but as it turns out I highly prefer very acidic tasting juices like typically acidic fruit flavors (oranges, dragon fruit, peach, but not apple. All apple flavors I've ever tried made my throat numb idk), or sweet and nutty flavors.
My advice is to try a more wide variety of juices. Also, try dropping your nic a bit when you can stand to. Very high nic content will alter the flavor of your juice. I vaped 18 mg for a while, and a 24 mg juice now? All I can taste is the nicotine (and nicotine does not taste very good to most people).
Yeah nicotine tastes like a mouth full of black pepper, will ruin a juice imo.