Wow... no responses to a simple question - from a first time poster in nearly 24 hours. That's not good.
Welcome to ECF Alex.
In response to your question, in an eGo battery, anything made by Kanger,
Joyetech or Vision, be it fixed voltage or adjustable will be good quality.
In a more advanced, but still self-contained "stick" format, will be the
Innokin iTaste 3.0. A bit more money, but well advanced from the more basic eGo
batteries.
For clearomizers and glassomizers, the same brands listed in the first sentence, plus add in the brands Anyvape and
Aspire, and you have all the best.
If you want to try a carto tank, look at
IBTanked aluminum and glass tanks, and
Boge cartomizers.
Unless you want to know about RBAs, RDAs (rebuildable atomizers), APVs and mech mods... that should be more than enough to get you moving.
Cheers