No fruit, no dessert, no mint, and very little sweetness limits your choices. This would leave you with nutty flavors like hazelnut, almond, amaretto, peanut butter, etc. And coffees, maybe chocolate, herbs, ginger, teas, and bourbons. Tobacco flavors might work as well, if you find the right one.
Try A Quiet Morning by Alice in Vapeland. It's a mild tea with very little sweetness. Or just get a sample pack from them. Even though you can only order on Tue and Wed, and their orders take forever, it will be worth it. Or just find a local shop with the line.
In general though, you probably like more flavors than you think. I was in the same boat as you because I tried a bunch of crappy online vendors where all the juices were overpowering (no complexity), too sweet, and/or had a chemical taste. Halo was one of them. As was Mt. Baker, Space Jam, Alien Visions, and Fuzion.
Once I found Five Pawns, Alice in Vapeland, and Ripe, I quickly started finding my taste preferences. It just took a few vendors with more complexity to do it. Five Pawns is on the expensive side, but they have awesome sampler packs from two different lines (10 total), and their shipping is free 2nd or 3rd day. Castle Long is a good one. Alice in Vapeland is less complex, but you can tell they put time into their juices. It's quality stuff.
Either way, keep hunting. I'll be trying Ahlusion, Nicoticket, and Heather's Heavenly Vapes over the next month or so. Tasting is half the fun.