Welcome Mediumrare
Juices are such a wide array - the flavors, the PG/VG levels, the nicotine. Everyone likes something different.
Not only the juice itself, but the topper on the device. You'll get the single/dual coil crowd, the top-coil/bottom coil crowd and the sub-ohm crowd. You'll get the contingent from the rebuildables, and the clearomizers and the cartomizer crowds as well. Again, everyone likes/experiences something completely different.
Not 100% sure what your Aspire tank is, but I'm guessing it's a bottom-coil clearomizer. Maybe with or without airflow (probably without judging from the price you paid for your goodies.) Mount Baker Vapor has some great (and relatively inexpensive) juice selections. You can pick from a variety of PG/VG ratios (higher PG tends to yield more flavor and more "throat hit", in addition to nicotine adding to throat hit; higher VG tends to be the cloud producer, but it's thicker and a little more difficult to wick.) Some people have various reactions to too much PG or VG. I like 50/50-ish. Best of both worlds for me.
Some juices need a little time to develop their flavors (called steeping). Mass-produced juices might tend to be a little light on flavor, where "custom" shops will mix a little more according to your tastes (i.e. Mt. Baker's "flavor shots")
Kinda back to Hectic's point, Mt Baker's juices are slightly customizable (you can pick from certain PG/VG ratios and add those "flavor shots" to boost the overall flavoring) Lots of folks who head for the sub-ohm world like the higher VG ratio because it can produce a higher volume of cloud than a higher-PG juice. Clearomizers (with pre-built coils) don't necessarily have the characteristics needed to properly wick higher-VG juices, so the great majority of MBV juices will work well in typical clearos, most of which are at least 1.6 ohms or higher.
Finding flavor(s) you like in ratios and nic levels will be a bit of a search for you (as it is for all of us.) Don't be afraid to try things, and you'll also likely find that your tastes will change over time. Some say they have their "all-day vape" (ADV) - I have yet to find mine

But, I don't mind. I'm making my own juices now, so my sky's the limit (based on what I have in my mixing cabinet.)
Find a sampling bar, if possible. Try different things. Note that those are probably mixed at 0mg nic (nic can deliver a "peppery" taste) so if you find a nic level, the taste won't be *exactly* the same, but hopefully not too different from the sample. I'd recommend smaller bottles to start with. But, if you get a couple that you're not overly crazy about, you can always blend them yourself (if they're compatible) and maybe come up with something more tolerable.
I never bought from too many places (besides my B&M, I think I've only ordered from 3 vendors.) Can't really comment on what's out there, but each person will swear by this or that

I've probably missed the boat on some magical flavor, but now that I make my own, I've made some clone recipes that I'm very happy with.
Good luck in the hunt for your flavor(s) IMO that's over half the fun of vaping!