Hi, not sure what you mean by "redo the coils"... maybe you meant "change them"?
(the Aerotank coils are very small and a pain to even consider rebuilding them.. if you do, kudos to you, I tried once and didn't feel the effort was worth it for me, and part of my moving to other tanks)
At this time, the selection is just simply baffling, so you'd have to know what you're looking for.
I had and used the Aerotank 2 for a while myself and while it was a great little tank, once I moved on to something with better airflow, larger coils that wouldn't be as easy to "pop" from over wattage, I never looked back, and gave mine to someone that was starting into vaping to quit smoking.
Most tanks that uses cartridges are very similar in terms of ease of use, but the largest switch is getting a top fill that makes it so much easier.
Just check the different brands to see what's available now, to see what you would prefer. Your style of vaping can also impact your selection. (either mouth to lung or direct lung).
Personally I went with a Melo 2 at the time, but if you're looking for a proven starter kit (at least next level for you), the Pico kit that comes with the Melo 3 has been hard to beat.
The advantages:
Mod:
- Removable/replaceable battery
- Temp. control
- Small size
- Reliable
Tank:
- Can take any coil from the Aspire Atlantis type (see my blog for more about this - click my name to find my blog)
- Top fill
- Decent airflow/adjustable
- Can be used for either style of vaping