Hi, NDX, and Welcome to ECF.
Unfortunately, there are so many choices out there that it's difficult to recommend one without knowing more about what you're looking for.
As a generic recommendation, the Aspire Nautilus with BVC (NOT BDC) coils is something many folks like a lot, and is not difficult to use.
The EVODs you started with aren't bad at all (although they aren't "high-performance", they're easy to deal with). At least you skipped the TopCoilClearos (TCC's, like the CE4) which aren't (IMHO) anywhere as good as the EVOD's and other BCC's.
But there's rebuildables, both in drippers and tanks, cartotanks, and lots of other options. How much are you looking to spend? What don't you like about the EVODs? Do you vape mostly on-the-go, or at home?
I could recommend tanks that are similar to the EVOD but, I think, are better (For example, the GS-H2's) if you are looking for a "gentle" progression. Or other stuff (sorry, at this point I think I'm just rambling....)
Welcome to ECF; there's lots of good stuff out there and the only bad choice is to jump the gun and buy lots of crap rather than figuring out something you would really like at a price you can afford!